I've been pretty happy with my '10 YZ 450, particularly after I had my suspension revalved for my riding style. I read in MXA about the "wiggle when entering corners" that their test riders describe. I normally take these comments with a grain of salt, (gearing it down 1 tooth, etc) but I find this is exactly the sensation I have been trying to pin down for a while. They say it is cured by a 1.5 mm longer pull arm on the linkage. This allows the bike to set lower in the rear (by 10 mm) and allows different options with sag and fork height. Pro Circuit is their vendor of choice, but they have none available. Are there other reputable purveyors of suspension components that could supply this part..?