This looks like Dan Hauss' Gorilla Change. It has a small change that, if I have guessed right, doesn't change the method significantly. In order to get it accepted you need to show its strengths when contrasted with the other available methods out there. You can do this by showing a full developed performance, alternative handlings, ways to get into and get out of the trick. Pit your effect up against other color changes, really prove why it is better to only change a part of the card at a time.