I'm looking at getting new rims sometime in the near future. I have been seeing Mavic X517 rims laced to Shimano XTR hubs in a lot of catalogues and shops. I have researched these and am pretty sure these are what I want. I wanted to know if any of you guys have had good/bad experiences with this wheelset. I am about 170, ride and race XC, and don't do any big drops. THANKS for the input!