diff --git a/Assets/Courses/Scripts/TemplateCourse.cs b/Assets/Courses/Scripts/TemplateCourse.cs
index 8bc2ad9..19b417a 100644
--- a/Assets/Courses/Scripts/TemplateCourse.cs
+++ b/Assets/Courses/Scripts/TemplateCourse.cs
@@ -128,9 +128,7 @@ public class TemplateCourse : MonoBehaviour
     {
         // Setting up course
         course = courselist.courses[courselist.currentCourseIndex];
-        //feedback.signPredictor.model = course.theme.model;
-        feedback.signPredictor.modelList.SetCurrentModel(course.theme.modelIndex);
-        //feedback.signPredictor.model = feedback.signPredictor.modelList.models[feedback.signPredictor.modelList.currentModelIndex].model;
+        feedback.signPredictor.ChangeModel(course.theme.modelIndex);
         maxWords = course.theme.learnables.Count;
 
         // vvv TEMPORARY STUFF vvv
diff --git a/Assets/Hangman/Scripts/HangmanGameController.cs b/Assets/Hangman/Scripts/HangmanGameController.cs
index 3b83c67..9771fc6 100644
--- a/Assets/Hangman/Scripts/HangmanGameController.cs
+++ b/Assets/Hangman/Scripts/HangmanGameController.cs
@@ -242,7 +242,7 @@ public class HangmanGameController : MonoBehaviour
         userList.Save();
 
         // Hangman always uses fingerspelling
-        feedback.signPredictor.model = feedback.signPredictor.modelList.GetModelByIndex(ModelIndex.FINGERSPELLING);
+        feedback.signPredictor.ChangeModel(ModelIndex.FINGERSPELLING);
 
         // Set calllbacks
         feedback.getSignCallback = () =>
diff --git a/Assets/MediaPipeUnity/Scripts/SignPredictor.cs b/Assets/MediaPipeUnity/Scripts/SignPredictor.cs
index 6815ae3..fb02a82 100644
--- a/Assets/MediaPipeUnity/Scripts/SignPredictor.cs
+++ b/Assets/MediaPipeUnity/Scripts/SignPredictor.cs
@@ -18,13 +18,10 @@ namespace Mediapipe.Unity.Tutorial
 {
     public class SignPredictor : MonoBehaviour
     {
-
-        public ModelList modelList;
-
         /// <summary>
-        /// Reference to the model used in the SignPredictor
+        /// ModelList, used to change model using ModelIndex
         /// </summary>
-        public NNModel model;
+        public ModelList modelList;
 
         /// <summary>
         /// Reference to the model info file
@@ -213,12 +210,22 @@ namespace Mediapipe.Unity.Tutorial
 
             // check if model exists at path
             //var model = ModelLoader.Load(Resources.Load<NNModel>("Models/Fingerspelling/model_A-L"));
-            worker = model.CreateWorker();
+            worker = modelList.models[modelList.currentModelIndex].model.CreateWorker();
 
             StartCoroutine(SignRecognitionCoroutine());
             StartCoroutine(MediapipeCoroutine());
         }
 
+        public void ChangeModel(ModelIndex index)
+        {
+            this.modelList.SetCurrentModel(index);
+            // If a worker already existed, we throw it out
+            worker?.Dispose();
+
+            // Add a new worker for the new model
+            worker = modelList.models[modelList.currentModelIndex].model.CreateWorker();
+        }
+
         /// <summary>
         /// Coroutine which executes the mediapipe pipeline
         /// </summary>
diff --git a/Assets/SpellingBee/Scripts/GameController.cs b/Assets/SpellingBee/Scripts/GameController.cs
index 6e22e68..d0605fc 100644
--- a/Assets/SpellingBee/Scripts/GameController.cs
+++ b/Assets/SpellingBee/Scripts/GameController.cs
@@ -182,8 +182,7 @@ public partial class GameController : MonoBehaviour
         userList.Save();
 
         currentTheme = minigame.themeList.themes[minigame.themeList.currentThemeIndex];
-        //feedback.signPredictor.model = currentTheme.model;
-        feedback.signPredictor.model = feedback.signPredictor.modelList.GetModelByIndex(currentTheme.modelIndex);
+        feedback.signPredictor.ChangeModel(currentTheme.modelIndex);
         words.AddRange(currentTheme.learnables);
         ShuffleWords();
         NextWord();