diff --git a/data/ln_10/ln_10.graphml b/data/ln_10/ln_10.graphml
index f1c2a90..ba968ec 100644
--- a/data/ln_10/ln_10.graphml
+++ b/data/ln_10/ln_10.graphml
@@ -195,7 +195,7 @@
     <edge source="3" target="5" id="0" />
     <edge source="3" target="5" id="47">
       <data key="channel_open">--local_amt=4000000 --push_amt=2000000</data>
-      <data key="source_policy"> --base_fee_msat=500 --fee_rate_ppm=1 --time_lock_delta=10 --min_htlc_msat=1 --max_htlc_msat=2000000000</data>
+      <data key="source_policy"> --base_fee_msat=500 --fee_rate_ppm=1 --time_lock_delta=18 --min_htlc_msat=1 --max_htlc_msat=2000000000</data>
       <data key="target_policy"> --base_fee_msat=1000 --fee_rate_ppm=1 --time_lock_delta=40 --min_htlc_msat=1000 --max_htlc_msat=2000000000</data>
     </edge>
     <edge source="4" target="5" id="0" />
@@ -214,7 +214,7 @@
     <edge source="5" target="7" id="0" />
     <edge source="5" target="7" id="45">
       <data key="channel_open">--local_amt=400000 --push_amt=200000</data>
-      <data key="source_policy"> --base_fee_msat=500 --fee_rate_ppm=1 --time_lock_delta=10 --min_htlc_msat=1 --max_htlc_msat=200000000</data>
+      <data key="source_policy"> --base_fee_msat=500 --fee_rate_ppm=1 --time_lock_delta=18 --min_htlc_msat=1 --max_htlc_msat=200000000</data>
       <data key="target_policy"> --base_fee_msat=1000 --fee_rate_ppm=499 --time_lock_delta=144 --min_htlc_msat=1 --max_htlc_msat=200000000</data>
     </edge>
     <edge source="6" target="7" id="0" />
diff --git a/data/ln_10/ln_10.json b/data/ln_10/ln_10.json
index d7062ec..0a81fd1 100644
--- a/data/ln_10/ln_10.json
+++ b/data/ln_10/ln_10.json
@@ -828,7 +828,7 @@
             "last_update": 1709865042,
             "capacity": "400000",
             "node1_policy": {
-                "time_lock_delta": 10,
+                "time_lock_delta": 18,
                 "min_htlc": "1",
                 "fee_base_msat": "500",
                 "fee_rate_milli_msat": "1",
@@ -886,7 +886,7 @@
             "last_update": 1710793630,
             "capacity": "4000000",
             "node1_policy": {
-                "time_lock_delta": 10,
+                "time_lock_delta": 18,
                 "min_htlc": "1",
                 "fee_base_msat": "500",
                 "fee_rate_milli_msat": "1",
@@ -1198,4 +1198,4 @@
             "custom_records": {}
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/data/ln_10/simln.json b/data/ln_10/simln.json
new file mode 100644
index 0000000..70d3108
--- /dev/null
+++ b/data/ln_10/simln.json
@@ -0,0 +1,342 @@
+{
+  "sim_network": [
+    {
+      "scid": 329853488398336,
+      "capacity_msat": 400000000,
+      "node_1": {
+        "pubkey": "02c2fab8d99106ce621cae6d35aaddcc5a13f6ae9c65f2c9cf2adc6570dc08482d",
+        "alias": "5",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 400000000,
+        "min_htlc_size_msat": 1,
+        "max_htlc_size_msat": 396000000,
+        "cltv_expiry_delta": 10,
+        "base_fee": 500,
+        "fee_rate_prop": 1
+      },
+      "node_2": {
+        "pubkey": "03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f",
+        "alias": "7",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 400000000,
+        "min_htlc_size_msat": 0,
+        "max_htlc_size_msat": 1000000,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 499
+      }
+    },
+    {
+      "scid": 330953000026112,
+      "capacity_msat": 4000000000,
+      "node_1": {
+        "pubkey": "02538a62eecb2875bf1a66ee15ad1e1fb499506accbcc1c0bcb7f383d7e4a6ba0c",
+        "alias": "1",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 4000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 3960000000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 150
+      },
+      "node_2": {
+        "pubkey": "033d8656219478701227199cbd6f670335c8d408a92ae88b962c49d4dc0e83e025",
+        "alias": "3",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 4000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 3960000000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 1
+      }
+    },
+    {
+      "scid": 332052511653888,
+      "capacity_msat": 4000000000,
+      "node_1": {
+        "pubkey": "033d8656219478701227199cbd6f670335c8d408a92ae88b962c49d4dc0e83e025",
+        "alias": "3",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 4000000000,
+        "min_htlc_size_msat": 1,
+        "max_htlc_size_msat": 3960000000,
+        "cltv_expiry_delta": 10,
+        "base_fee": 500,
+        "fee_rate_prop": 1
+      },
+      "node_2": {
+        "pubkey": "02c2fab8d99106ce621cae6d35aaddcc5a13f6ae9c65f2c9cf2adc6570dc08482d",
+        "alias": "5",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 4000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 4000000000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 1
+      }
+    },
+    {
+      "scid": 333152023281664,
+      "capacity_msat": 50000000,
+      "node_1": {
+        "pubkey": "03b55123d5f2454795c906d53f32590602dd27bf35000b2fb8e581e68c7843af21",
+        "alias": "0",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 50000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 49500000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 1
+      },
+      "node_2": {
+        "pubkey": "02f95c6f3498caf4f6811c5edc4ac9806ba345534a18391e94ae9f7af41104df18",
+        "alias": "9",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 50000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 49500000,
+        "cltv_expiry_delta": 100,
+        "base_fee": 1000,
+        "fee_rate_prop": 537
+      }
+    },
+    {
+      "scid": 334251534909440,
+      "capacity_msat": 50000000,
+      "node_1": {
+        "pubkey": "02538a62eecb2875bf1a66ee15ad1e1fb499506accbcc1c0bcb7f383d7e4a6ba0c",
+        "alias": "1",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 50000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 49500000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 5000
+      },
+      "node_2": {
+        "pubkey": "02f95c6f3498caf4f6811c5edc4ac9806ba345534a18391e94ae9f7af41104df18",
+        "alias": "9",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 50000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 49500000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 1
+      }
+    },
+    {
+      "scid": 335351046537216,
+      "capacity_msat": 3000000000,
+      "node_1": {
+        "pubkey": "03797da684da0b6de8a813f9d7ebb0412c5d7504619b3fa5255861b991a7f86960",
+        "alias": "6",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 3000000000,
+        "min_htlc_size_msat": 1,
+        "max_htlc_size_msat": 2970000000,
+        "cltv_expiry_delta": 34,
+        "base_fee": 0,
+        "fee_rate_prop": 10
+      },
+      "node_2": {
+        "pubkey": "028ed235ce7921fc8fbb2c1a775240115ce4d9edda194862868aa3d71eab3e6f91",
+        "alias": "8",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 3000000000,
+        "min_htlc_size_msat": 3000,
+        "max_htlc_size_msat": 2673000000,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 2000
+      }
+    },
+    {
+      "scid": 336450558164992,
+      "capacity_msat": 6000000000,
+      "node_1": {
+        "pubkey": "0390ed7a2f7e4560646dba32b852ec43d2c7d4c5237810c3ae0083c0668a040ea9",
+        "alias": "2",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 6000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 5940000000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 1
+      },
+      "node_2": {
+        "pubkey": "033d8656219478701227199cbd6f670335c8d408a92ae88b962c49d4dc0e83e025",
+        "alias": "3",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 6000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 5940000000,
+        "cltv_expiry_delta": 432,
+        "base_fee": 1000,
+        "fee_rate_prop": 1440
+      }
+    },
+    {
+      "scid": 337550069792768,
+      "capacity_msat": 14643925000,
+      "node_1": {
+        "pubkey": "0390ed7a2f7e4560646dba32b852ec43d2c7d4c5237810c3ae0083c0668a040ea9",
+        "alias": "2",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 14643925000,
+        "min_htlc_size_msat": 1,
+        "max_htlc_size_msat": 14497486000,
+        "cltv_expiry_delta": 34,
+        "base_fee": 9,
+        "fee_rate_prop": 1
+      },
+      "node_2": {
+        "pubkey": "028ed235ce7921fc8fbb2c1a775240115ce4d9edda194862868aa3d71eab3e6f91",
+        "alias": "8",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 14643925000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 14643925000,
+        "cltv_expiry_delta": 432,
+        "base_fee": 700,
+        "fee_rate_prop": 1740
+      }
+    },
+    {
+      "scid": 338649581420544,
+      "capacity_msat": 750000000,
+      "node_1": {
+        "pubkey": "03b55123d5f2454795c906d53f32590602dd27bf35000b2fb8e581e68c7843af21",
+        "alias": "0",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 750000000,
+        "min_htlc_size_msat": 3000,
+        "max_htlc_size_msat": 668250000,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 10
+      },
+      "node_2": {
+        "pubkey": "03797da684da0b6de8a813f9d7ebb0412c5d7504619b3fa5255861b991a7f86960",
+        "alias": "6",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 750000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 742500000,
+        "cltv_expiry_delta": 100,
+        "base_fee": 1000,
+        "fee_rate_prop": 406
+      }
+    },
+    {
+      "scid": 339749093048320,
+      "capacity_msat": 4000000000,
+      "node_1": {
+        "pubkey": "02538a62eecb2875bf1a66ee15ad1e1fb499506accbcc1c0bcb7f383d7e4a6ba0c",
+        "alias": "1",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 4000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 1800000000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 5000
+      },
+      "node_2": {
+        "pubkey": "03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f",
+        "alias": "7",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 4000000000,
+        "min_htlc_size_msat": 1,
+        "max_htlc_size_msat": 1800000000,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 499
+      }
+    },
+    {
+      "scid": 340848604676096,
+      "capacity_msat": 100000000000,
+      "node_1": {
+        "pubkey": "033d8656219478701227199cbd6f670335c8d408a92ae88b962c49d4dc0e83e025",
+        "alias": "3",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 100000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 20000000000,
+        "cltv_expiry_delta": 80,
+        "base_fee": 1000,
+        "fee_rate_prop": 1
+      },
+      "node_2": {
+        "pubkey": "03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f",
+        "alias": "7",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 100000000000,
+        "min_htlc_size_msat": 1,
+        "max_htlc_size_msat": 1,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 999
+      }
+    },
+    {
+      "scid": 341948116303872,
+      "capacity_msat": 5000000000,
+      "node_1": {
+        "pubkey": "0341a7227fab90a8ec55fdccc5c3d2dbb407b0924f7ccbad2b594f5891ac4a1c9f",
+        "alias": "4",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 5000000000,
+        "min_htlc_size_msat": 1000,
+        "max_htlc_size_msat": 4950000000,
+        "cltv_expiry_delta": 40,
+        "base_fee": 1000,
+        "fee_rate_prop": 1
+      },
+      "node_2": {
+        "pubkey": "03797da684da0b6de8a813f9d7ebb0412c5d7504619b3fa5255861b991a7f86960",
+        "alias": "6",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 5000000000,
+        "min_htlc_size_msat": 3000,
+        "max_htlc_size_msat": 4455000000,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 542
+      }
+    },
+    {
+      "scid": 343047627931648,
+      "capacity_msat": 140000000000,
+      "node_1": {
+        "pubkey": "03797da684da0b6de8a813f9d7ebb0412c5d7504619b3fa5255861b991a7f86960",
+        "alias": "6",
+        "max_htlc_count": 483,
+        "max_in_flight_msat": 140000000000,
+        "min_htlc_size_msat": 3000,
+        "max_htlc_size_msat": 20000000000,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 2500
+      },
+      "node_2": {
+        "pubkey": "03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f",
+        "alias": "7",
+        "max_htlc_count": 15,
+        "max_in_flight_msat": 140000000000,
+        "min_htlc_size_msat": 1,
+        "max_htlc_size_msat": 20000000000,
+        "cltv_expiry_delta": 144,
+        "base_fee": 1000,
+        "fee_rate_prop": 499
+      }
+    }
+  ]
+}
\ No newline at end of file