So i was thinking of upgrading the wifes sled. She is currently on a 2002 zr 600. We ride exclusively hard pack trails in central wisconsin with an occasional trip to the up of mich. My budget is 5-6k. shes experienced, im not afraid of any size motor for her, thinking an 800 would be a good fit. Must have electric start and reverse. she wanted a crossfire but recently realized finding one with electric start aint gonna happen. She doesnt want twin spar. That leaves pro cross. my budget seems to fit with the 2012 and 2013 sleds. Problem is a lot of posts say they had more than normal problems but would be ok if the updates were done. I wrench on my own sleds. 1. is there a visual way to see if updates were done? 2. tim trying to understand the different models offered in pro cross and get a little confused, any recommendations for which pro cross sled(s) would be a good fit?