diff --git a/pallets/subtensor/src/benchmarks.rs b/pallets/subtensor/src/benchmarks.rs
index fd49b9a6b2..d04328cd0d 100644
--- a/pallets/subtensor/src/benchmarks.rs
+++ b/pallets/subtensor/src/benchmarks.rs
@@ -1405,7 +1405,7 @@ mod pallet_benchmarks {
             seed_swap_reserves::<T>(netuid);
             Subtensor::<T>::add_balance_to_coldkey_account(&coldkey, reg_balance.into());
 
-            assert_ok!(Subtensor::<T>::do_burned_registration(
+            assert_ok!(Subtensor::<T>::burned_register(
                 RawOrigin::Signed(coldkey.clone()).into(),
                 netuid,
                 old.clone()
diff --git a/pallets/subtensor/src/migrations/migrate_clear_deprecated_registration_maps.rs b/pallets/subtensor/src/migrations/migrate_clear_deprecated_registration_maps.rs
index 645f7c6d1c..4d062699e6 100644
--- a/pallets/subtensor/src/migrations/migrate_clear_deprecated_registration_maps.rs
+++ b/pallets/subtensor/src/migrations/migrate_clear_deprecated_registration_maps.rs
@@ -38,11 +38,6 @@ pub fn migrate_clear_deprecated_registration_maps<T: Config>() -> Weight {
             }
         }};
     }
-
-    // PoW path (deprecated)
-    clear_map_and_log!(Difficulty, "Difficulty");
-    clear_map_and_log!(MinDifficulty, "MinDifficulty");
-    clear_map_and_log!(MaxDifficulty, "MaxDifficulty");
     clear_map_and_log!(
         NetworkPowRegistrationAllowed,
         "NetworkPowRegistrationAllowed"
@@ -55,15 +50,6 @@ pub fn migrate_clear_deprecated_registration_maps<T: Config>() -> Weight {
         "BurnRegistrationsThisInterval"
     );
 
-    // Old adjustment mechanism (deprecated)
-    clear_map_and_log!(AdjustmentAlpha, "AdjustmentAlpha");
-    clear_map_and_log!(AdjustmentInterval, "AdjustmentInterval");
-    clear_map_and_log!(LastAdjustmentBlock, "LastAdjustmentBlock");
-
-    // Burn bounds (deprecated, not part of the new model)
-    clear_map_and_log!(MinBurn, "MinBurn");
-    clear_map_and_log!(MaxBurn, "MaxBurn");
-
     // --- 2) Mark migration done
     HasMigrationRun::<T>::insert(&migration_name, true);
     weight = weight.saturating_add(T::DbWeight::get().writes(1));
diff --git a/pallets/subtensor/src/tests/migration.rs b/pallets/subtensor/src/tests/migration.rs
index 914a5321f2..368851846b 100644
--- a/pallets/subtensor/src/tests/migration.rs
+++ b/pallets/subtensor/src/tests/migration.rs
@@ -3173,59 +3173,23 @@ fn test_migrate_clear_deprecated_registration_maps() {
         assert_eq!(crate::BurnIncreaseMult::<Test>::get(netuid1), 11u64);
 
         // Seed deprecated storage items that the migration is expected to clear.
-        crate::Difficulty::<Test>::insert(netuid0, 123u64);
-        crate::MinDifficulty::<Test>::insert(netuid0, 10u64);
-        crate::MaxDifficulty::<Test>::insert(netuid0, 999u64);
         crate::NetworkPowRegistrationAllowed::<Test>::insert(netuid0, true);
 
         crate::POWRegistrationsThisInterval::<Test>::insert(netuid0, 7u16);
         crate::BurnRegistrationsThisInterval::<Test>::insert(netuid0, 8u16);
 
-        crate::AdjustmentAlpha::<Test>::insert(netuid0, 55u64);
-        crate::AdjustmentInterval::<Test>::insert(netuid0, 11u16);
-        crate::LastAdjustmentBlock::<Test>::insert(netuid0, 88u64);
-
-        crate::MinBurn::<Test>::insert(netuid0, TaoBalance::from(1_000_000_000u64));
-        crate::MaxBurn::<Test>::insert(netuid0, TaoBalance::from(2_000_000_000u64));
-
-        crate::Difficulty::<Test>::insert(netuid1, 321u64);
-        crate::MinDifficulty::<Test>::insert(netuid1, 20u64);
-        crate::MaxDifficulty::<Test>::insert(netuid1, 777u64);
         crate::NetworkPowRegistrationAllowed::<Test>::insert(netuid1, false);
 
         crate::POWRegistrationsThisInterval::<Test>::insert(netuid1, 17u16);
         crate::BurnRegistrationsThisInterval::<Test>::insert(netuid1, 18u16);
 
-        crate::AdjustmentAlpha::<Test>::insert(netuid1, 155u64);
-        crate::AdjustmentInterval::<Test>::insert(netuid1, 21u16);
-        crate::LastAdjustmentBlock::<Test>::insert(netuid1, 188u64);
-
-        crate::MinBurn::<Test>::insert(netuid1, TaoBalance::from(3_000_000_000u64));
-        crate::MaxBurn::<Test>::insert(netuid1, TaoBalance::from(4_000_000_000u64));
-
-        assert!(crate::Difficulty::<Test>::contains_key(netuid0));
-        assert!(crate::MinDifficulty::<Test>::contains_key(netuid0));
-        assert!(crate::MaxDifficulty::<Test>::contains_key(netuid0));
         assert!(crate::NetworkPowRegistrationAllowed::<Test>::contains_key(netuid0));
         assert!(crate::POWRegistrationsThisInterval::<Test>::contains_key(netuid0));
         assert!(crate::BurnRegistrationsThisInterval::<Test>::contains_key(netuid0));
-        assert!(crate::AdjustmentAlpha::<Test>::contains_key(netuid0));
-        assert!(crate::AdjustmentInterval::<Test>::contains_key(netuid0));
-        assert!(crate::LastAdjustmentBlock::<Test>::contains_key(netuid0));
-        assert!(crate::MinBurn::<Test>::contains_key(netuid0));
-        assert!(crate::MaxBurn::<Test>::contains_key(netuid0));
-
-        assert!(crate::Difficulty::<Test>::contains_key(netuid1));
-        assert!(crate::MinDifficulty::<Test>::contains_key(netuid1));
-        assert!(crate::MaxDifficulty::<Test>::contains_key(netuid1));
+
         assert!(crate::NetworkPowRegistrationAllowed::<Test>::contains_key(netuid1));
         assert!(crate::POWRegistrationsThisInterval::<Test>::contains_key(netuid1));
         assert!(crate::BurnRegistrationsThisInterval::<Test>::contains_key(netuid1));
-        assert!(crate::AdjustmentAlpha::<Test>::contains_key(netuid1));
-        assert!(crate::AdjustmentInterval::<Test>::contains_key(netuid1));
-        assert!(crate::LastAdjustmentBlock::<Test>::contains_key(netuid1));
-        assert!(crate::MinBurn::<Test>::contains_key(netuid1));
-        assert!(crate::MaxBurn::<Test>::contains_key(netuid1));
 
         // --------------------------------------------------------------------
         // 1) Run migration
@@ -3241,29 +3205,13 @@ fn test_migrate_clear_deprecated_registration_maps() {
             "migration flag should be true after run"
         );
 
-        assert!(!crate::Difficulty::<Test>::contains_key(netuid0));
-        assert!(!crate::MinDifficulty::<Test>::contains_key(netuid0));
-        assert!(!crate::MaxDifficulty::<Test>::contains_key(netuid0));
         assert!(!crate::NetworkPowRegistrationAllowed::<Test>::contains_key(netuid0));
         assert!(!crate::POWRegistrationsThisInterval::<Test>::contains_key(netuid0));
         assert!(!crate::BurnRegistrationsThisInterval::<Test>::contains_key(netuid0));
-        assert!(!crate::AdjustmentAlpha::<Test>::contains_key(netuid0));
-        assert!(!crate::AdjustmentInterval::<Test>::contains_key(netuid0));
-        assert!(!crate::LastAdjustmentBlock::<Test>::contains_key(netuid0));
-        assert!(!crate::MinBurn::<Test>::contains_key(netuid0));
-        assert!(!crate::MaxBurn::<Test>::contains_key(netuid0));
-
-        assert!(!crate::Difficulty::<Test>::contains_key(netuid1));
-        assert!(!crate::MinDifficulty::<Test>::contains_key(netuid1));
-        assert!(!crate::MaxDifficulty::<Test>::contains_key(netuid1));
+
         assert!(!crate::NetworkPowRegistrationAllowed::<Test>::contains_key(netuid1));
         assert!(!crate::POWRegistrationsThisInterval::<Test>::contains_key(netuid1));
         assert!(!crate::BurnRegistrationsThisInterval::<Test>::contains_key(netuid1));
-        assert!(!crate::AdjustmentAlpha::<Test>::contains_key(netuid1));
-        assert!(!crate::AdjustmentInterval::<Test>::contains_key(netuid1));
-        assert!(!crate::LastAdjustmentBlock::<Test>::contains_key(netuid1));
-        assert!(!crate::MinBurn::<Test>::contains_key(netuid1));
-        assert!(!crate::MaxBurn::<Test>::contains_key(netuid1));
 
         // --------------------------------------------------------------------
         // 3) Post-state: new-model storage unchanged