I bought my PSE carerra in 96. I have taken several deer every year with it since. This past season I wanted to change some things on it and put on a trap door rest, extreme sights, and new string. Guys, I gotta tell you, I have a 2inch grouping at 30 yards consistently. I have never shot this well. That trap door is really something else. I just wanted to put a post up here to encourage anyone who wants a change to give it a try. I would love to see some of your experiences with changing your setup after years of getting used to something.