diff --git a/Editor/ClusterInspector.cs b/Editor/ClusterInspector.cs
index 541134f..47721a5 100644
--- a/Editor/ClusterInspector.cs
+++ b/Editor/ClusterInspector.cs
@@ -279,7 +279,7 @@ public class ClusterInspector : Editor {
                 if (drawnArrays.Contains(receiver.array))
                     continue;
                 drawnArrays.Add(receiver.array);
-                
+
                 Nucleus receiverNucleus = receiver;
                 if (receiverNucleus == null)
                     continue;
@@ -396,7 +396,12 @@ public class ClusterInspector : Editor {
                 else {
                     style.alignment = TextAnchor.UpperCenter;
                     Vector3 labelPos = position - Vector3.down * (size + 10f); // below disc along up axis
-                    Handles.Label(labelPos, nucleus.name, style);
+                    int colonPos = nucleus.name.IndexOf(":");
+                    if (colonPos > 0) {
+                        string baseName = nucleus.name[..colonPos];
+                        Handles.Label(labelPos, baseName, style);
+                    } else
+                        Handles.Label(labelPos, nucleus.name, style);
                 }
 
                 if (nucleus is Cluster cluster) {
@@ -428,17 +433,9 @@ public class ClusterInspector : Editor {
 
         private void HandleMouseHover(Nucleus nucleus, Rect rect) {
             GUIContent tooltip;
-            // if (nucleus is Nucleus n) {
-            //     tooltip = new(
-            //         $"{nucleus.name}" +
-            //         //$"\nsynapse count {n.synapses.Count}" +
-            //         $"\nValue: {length(nucleus.outputValue)}");
-            // }
-            // else {
-                tooltip = new(
-                    $"{nucleus.name}" +
-                    $"\nValue: {length(nucleus.outputValue)}");
-            // }
+            tooltip = new(
+                $"{nucleus.name}" +
+                $"\nValue: {length(nucleus.outputValue)}");
 
             Vector2 mousePosition = Event.current.mousePosition;
 
diff --git a/NucleusArray.cs b/NucleusArray.cs
index af9bd63..543718d 100644
--- a/NucleusArray.cs
+++ b/NucleusArray.cs
@@ -66,20 +66,22 @@ public class NucleusArray {
     public virtual void ProcessStimulus(int thingId, Vector3 inputValue, string thingName = null) {
         CleanupReceivers();
         if (!thingReceivers.TryGetValue(thingId, out Nucleus selectedReceiver)) {
-            Debug.Log($"No receiver found for {thingId}");
+            // Debug.Log($"No receiver found for {thingId}");
             foreach (Nucleus receptor in this.nuclei) {
                 if (receptor is not Nucleus receiver)
                     continue;
 
                 if (thingReceivers.ContainsValue(receiver) == false) {
                     // receiver is not used yet
-                    Debug.Log($"{thingId} -> {receiver.name}");
+                    // Debug.Log($"{thingId} -> {receiver.name}");
                     thingReceivers.Add(thingId, receiver);
                     selectedReceiver = receiver;
                     break;
                 }
             }
         }
+        if (selectedReceiver == null)
+            return; 
 
         if (thingName != null) {
             string baseName = selectedReceiver.name;
@@ -99,8 +101,7 @@ public class NucleusArray {
         List<int> receiversToRemove = new();
         foreach (KeyValuePair<int, Nucleus> item in thingReceivers) {
             if (item.Value.isSleeping) {
-                Nucleus n = item.Value as Nucleus;
-                Debug.Log($"{item.Value.name} is sleeping, stale = {n.stale}");
+                //Nucleus n = item.Value as Nucleus;
                 receiversToRemove.Add(item.Key);
             }
         }
@@ -108,7 +109,6 @@ public class NucleusArray {
             Nucleus selectedReceiver = thingReceivers[thingId];
 
             thingReceivers.Remove(thingId);
-            Debug.Log($"Cleanup receiver for {thingId}");
 
             int colonPos = selectedReceiver.name.IndexOf(":");
             if (colonPos > 0)