diff --git a/src/data/custom-pokemon-data.ts b/src/data/custom-pokemon-data.ts
index b70fe8291d8..c8e89fd8748 100644
--- a/src/data/custom-pokemon-data.ts
+++ b/src/data/custom-pokemon-data.ts
@@ -7,8 +7,11 @@ import type { Nature } from "#enums/nature";
  * Includes abilities, nature, changed types, etc.
  */
 export class CustomPokemonData {
-  /** The scale at which to render this Pokemon's sprite. */
-  public spriteScale = 1;
+  // TODO: Change the default value for all these from -1 to something a bit more sensible
+  /**
+   * The scale at which to render this Pokemon's sprite.
+   */
+  public spriteScale = -1;
   public ability: Abilities | -1;
   public passive: Abilities | -1;
   public nature: Nature | -1;
diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index 6b77311e924..b637a2d8b35 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -1215,6 +1215,10 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
       // G-Max and starmobiles have flat 1.5x scale
       return 1.5;
     }
+
+    if (this.customPokemonData.spriteScale <= 0) {
+      return 1;
+    }
     return this.customPokemonData.spriteScale;
   }
 
diff --git a/src/system/version_migration/versions/v1_9_0.ts b/src/system/version_migration/versions/v1_9_0.ts
index 064e9503d33..9505a7138f8 100644
--- a/src/system/version_migration/versions/v1_9_0.ts
+++ b/src/system/version_migration/versions/v1_9_0.ts
@@ -27,17 +27,14 @@ const migratePartyData: SessionSaveMigrator = {
       // only edit summondata moveset if exists
       pkmnData.summonData.moveset &&= pkmnData.summonData.moveset.filter(m => !!m).map(m => PokemonMove.loadMove(m));
 
-      if (pkmnData.customPokemonData) {
-        // revert all "-1" sprite scales to a minimum value of 1
-        pkmnData.customPokemonData.spriteScale = Math.max(1, pkmnData.customPokemonData.spriteScale);
-        if (
-          "hitsRecCount" in pkmnData.customPokemonData &&
-          typeof pkmnData.customPokemonData["hitsRecCount"] === "number"
-        ) {
-          // transfer old hit count stat to battleData.
-          pkmnData.battleData.hitCount = pkmnData.customPokemonData["hitsRecCount"];
-          pkmnData.customPokemonData["hitsRecCount"] = null;
-        }
+      if (
+        pkmnData.customPokemonData &&
+        "hitsRecCount" in pkmnData.customPokemonData &&
+        typeof pkmnData.customPokemonData["hitsRecCount"] === "number"
+      ) {
+        // transfer old hit count stat to battleData.
+        pkmnData.battleData.hitCount = pkmnData.customPokemonData["hitsRecCount"];
+        pkmnData.customPokemonData["hitsRecCount"] = null;
       }
       return pkmnData;
     };