First off, I want to say that I would prefer to NOT buy new primary and secondary, and I am sure there are more out there like me. There has to be a way to tune the stock clutches to perform better. I would like my mav to hold back a little longer before shifting out. It goes from 0-55 quick, and its a very slow climb up to 70 or so. Everything is still stock in the drive train. Overall I love it, just want it to feel more like a sled, you know holding pulling power all the way up, not just to 55. So, what has everyone else done to pull power?