After riding hard this weekend and me getting older i'm getting a rev. chassis for next year. What can anyone tell me about the 2007 mxz 550x sleds?? Looks to be in my engine size and price. I really like to pound the ditches but don't want to spend more than seven grand. Any thoughts? I've heard great things about the 500ss motors but not much about the 550f's. Again any thoughts?