OOps. You are correct. It worked. I had to reimport the asset after the move but it works fine. Thanks. Also, thanks for the response on the source. You reasons makes sense. You assurance for full support and a future source release is enough for me. @Remiel, I may be wrong but if you remove the asset due to a future bug or show stopper you would simply need to remove the accompanying script from the prefab. The prefab itself would still work. @PrefabEvolution please correct me if I am wrong.