Fix check order for Pressure/Hustle/Vital Spirit

what a silly set of conditions for it to matter -- we need to permit matching of boosted slots, then enforce that the boosting is valid for the slot, and disallow any other lead. If it couldn't be boosted, then ignore the slot.
https://projectpokemon.org/home/forums/topic/57375-pkhex-new-update-legality-errors-contribution-page/?do=findComment&comment=288731

PKHeX.Core/Legality/Encounters/Templates/Gen4/EncounterArea4.cs

@@ -75,7 +75,7 @@ public sealed record EncounterArea4 : IEncounterArea<EncounterSlot4>, IGroundTyp
         {
             if (slot.Species != species)
                 continue;
-            if (slot.LevelMax < levelMax)
+            if (slot.LevelMax <= levelMax)
                 continue;
             levelMax = slot.LevelMax;
         }

PKHeX.Core/Legality/Encounters/Templates/Gen4/EncounterSlot4.cs

@@ -131,7 +131,10 @@ public sealed record EncounterSlot4(EncounterArea4 Parent, ushort Species, byte
         {
             // Must match level exactly.
             if (!this.IsLevelWithinRange(pk.MetLevel))
-                return false;
+            {
+                if ((Type is not Grass || pk.MetLevel != PressureLevel) || ParseSettings.RNGFrameNotFound4 != Severity.Invalid)
+                    return false; // Only allow Pressure Slots through if they'll be checked by the later Lead verification.
+            }
         }
         else
         {

PKHeX.Core/Legality/RNG/ClassicEra/Gen4/MethodJ.cs

@@ -211,7 +211,7 @@ public static class MethodJ
             return TryGetMatchNoSync(ctx, out result);
         }
         var syncProc = IsSyncPass(p0);
-        if (syncProc)
+        if (syncProc && !(enc.Type is Grass && enc.LevelMax < levelMin))
         {
             var ctx = new FrameCheckDetails<T>(enc, seed, levelMin, levelMax, format);
             if (IsSlotValidRegular(ctx, out seed))
@@ -278,6 +278,21 @@ public static class MethodJ
     private static bool TryGetMatchNoSync<T>(in FrameCheckDetails<T> ctx, out LeadSeed result)
         where T : IEncounterSlot4
     {
+        if (ctx.Encounter.Type is Grass)
+        {
+            if (ctx.Encounter.LevelMax > ctx.LevelMin) // Must be boosted via Pressure/Hustle/Vital Spirit
+            {
+                if (IsSlotValidHustleVital(ctx, out var pressure))
+                { result = new(pressure, PressureHustleSpirit); return true; }
+                result = default; return false;
+            }
+            if (ctx.Encounter.PressureLevel <= ctx.LevelMax) // Can be boosted, or not.
+            {
+                if (IsSlotValidHustleVital(ctx, out var pressure))
+                { result = new(pressure, PressureHustleSpirit); return true; }
+            }
+        }
+
         if (IsSlotValidRegular(ctx, out uint seed))
         { result = new(seed, None); return true; }
 
@@ -293,8 +308,6 @@ public static class MethodJ
 
         if (IsSlotValidStaticMagnet(ctx, out seed, out var lead))
         { result = new(seed, lead); return true; }
-        if (IsSlotValidHustleVital(ctx, out seed))
-        { result = new(seed, PressureHustleSpirit); return true; }
         if (IsSlotValidIntimidate(ctx, out seed))
         { result = new(seed, IntimidateKeenEyeFail); return true; }
 

PKHeX.Core/Legality/RNG/ClassicEra/Gen4/MethodK.cs

@@ -169,7 +169,7 @@ public static class MethodK
             if (depth != 4 && enc is EncounterSlot4 s && (s.IsBugContest || s.IsSafariHGSS))
                 return Recurse4x(enc, levelMin, levelMax, seed, nature, format, out result, ++depth);
         }
-        else if (IsSyncPass(p0))
+        else if (IsSyncPass(p0) && !(enc.Type is Grass && enc.LevelMax < levelMin))
         {
             var ctx = new FrameCheckDetails<T>(enc, seed, levelMin, levelMax, format);
             if (IsSlotValidRegular(ctx, out seed))
@@ -300,6 +300,21 @@ public static class MethodK
     private static bool TryGetMatchNoSync<T>(in FrameCheckDetails<T> ctx, out LeadSeed result)
         where T : IEncounterSlot4
     {
+        if (ctx.Encounter.Type is Grass)
+        {
+            if (ctx.Encounter.LevelMax < ctx.LevelMin) // Must be boosted via Pressure/Hustle/Vital Spirit
+            {
+                if (IsSlotValidHustleVital(ctx, out var pressure))
+                { result = new(pressure, PressureHustleSpirit); return true; }
+                result = default; return false;
+            }
+            if (ctx.Encounter.PressureLevel <= ctx.LevelMax) // Can be boosted, or not.
+            {
+                if (IsSlotValidHustleVital(ctx, out var pressure))
+                { result = new(pressure, PressureHustleSpirit); return true; }
+            }
+        }
+
         if (IsSlotValidRegular(ctx, out uint seed))
         { result = new(seed, None); return true; }
 
@@ -315,8 +330,6 @@ public static class MethodK
 
         if (IsSlotValidStaticMagnet(ctx, out seed, out var sm))
         { result = new(seed, sm); return true; }
-        if (IsSlotValidHustleVital(ctx, out seed))
-        { result = new(seed, PressureHustleSpirit); return true; }
         if (IsSlotValidIntimidate(ctx, out seed))
         { result = new(seed, IntimidateKeenEyeFail); return true; }