I'm not familiar with carbon arrow spines, and I have heard good and bad about how the Simmons heads fly. I can say this though--if the arrow spine is matched properly to your bow, it should work just fine. There are other heavy broadheads thay may work if the Simmons head doesn't. It may take some fine tuning on your part, and the arrow that works on paper may not be the same arrow that works in "real life", but with some tinkering you will get it right.

Chad

Long Bows Rule!