An idea has occurred to me that you might have guessed based on the title of this thread. I was given Specialist Ratchet, a repaint of the Dark of the Moon deluxe Ratchet. I don't collect movie toys so I wasn't expecting much when I opened him. Other than his head this figure can very easily fit in with my collection. And just now I realized that if I could perform a head swap on him he would make a very adequate Ratchet for the Prime cast. So I looked at the figures I own seeing who had the most similar head to his Prime design. Thunderwing is the best I have and honestly with a little work I think it would work well. But there may be an easier and better head out there that I couldn't think of. So I pose the question to the boards. If you were to head swap Specialist Ratchet to make him Prime Ratchet, which head would you use? Also I guess I wanted to pass this idea along to others. And now to poke around and see how difficult it would be to obtain another Thunderwing head before I commit to this.