diff --git a/PKHeX.Core/Legality/Evolutions/EvolutionGroup/EvolutionGroupHOME.cs b/PKHeX.Core/Legality/Evolutions/EvolutionGroup/EvolutionGroupHOME.cs
index 118887134..a07145f88 100644
--- a/PKHeX.Core/Legality/Evolutions/EvolutionGroup/EvolutionGroupHOME.cs
+++ b/PKHeX.Core/Legality/Evolutions/EvolutionGroup/EvolutionGroupHOME.cs
@@ -125,19 +125,22 @@ static bool UpdateIfBetter(ref EvoCriteria reference, in EvoCriteria evo)
             }
         }
 
-        history.Gen8  = SetHistory(result, PersonalTable.SWSH);
-        history.Gen8a = SetHistory(result, PersonalTable.LA);
-        history.Gen8b = SetHistory(result, PersonalTable.BDSP);
-        history.Gen9  = SetHistory(result, PersonalTable.SV);
-
-        if (history.HasVisitedGen7)
+        // Can't leave BD/SP. Abort early.
+        if (pk is { Species: (int)Species.Nincada or (int)Species.Spinda, BDSP: true })
         {
-            // 0->X Alolan forms can't evolve after Gen7 (yet).
-            if (pk is { Species: (int)Species.Raichu, Form: 1 })
-                history.Gen8b = history.Gen8a = Array.Empty<EvoCriteria>();
-            // All others can't enter otherwise (not in game).
+            history.Gen8b = SetHistory(result, PersonalTable.BDSP);
+            return present;
         }
 
+        history.Gen9 = SetHistory(result, PersonalTable.SV);
+        history.Gen8  = SetHistory(result, PersonalTable.SWSH);
+        if (pk is { Species: (int)Species.Raichu, Form: 1 } && history.HasVisitedGen7)
+            return present; // Alolan Raichu can't enter Gen8a/b.
+        history.Gen8a = SetHistory(result, PersonalTable.LA);
+        if (pk is { Species: (int)Species.Nincada or (int)Species.Spinda })
+            return present; // Nincada/Spinda can't enter Gen8b.
+        history.Gen8b = SetHistory(result, PersonalTable.BDSP);
+
         return present;
     }
 
@@ -272,8 +275,7 @@ public bool TryEvolve(ISpeciesForm head, ISpeciesForm next, PKM pk, byte current
     // Unreleased Item
     private static bool IsEvolutionBanned(in ISpeciesForm head) => head.Species switch
     {
-        (int)Species.Slowpoke => head.Form != 1,
-        (int)Species.Slowbro => head.Form != 2,
+        (int)Species.Slowpoke => head.Form == 1,
         _ => false,
     };
 }
diff --git a/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs b/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs
index 6cd27aef7..f64e1bf68 100644
--- a/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs
+++ b/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs
@@ -126,6 +126,8 @@ public void VerifyTransferLegalityG8(LegalityAnalysis data)
         var pk = data.Entity;
         var enc = data.EncounterMatch;
         bool native = enc.Generation == 8 && pk.IsNative;
+        if (native && pk is PK8 pk8 && LocationsHOME.IsLocationSWSH(pk8.Met_Location))
+            native = false;
         if (!native || IsHOMETrackerRequired(enc))
             VerifyHOMETracker(data, pk);