Has anyone ridden these bikes back to back?? What are the strengths and weaknesses of each? Are the green bikes really as good as all the mags are saying --- opinions please. Had decided on the yzf purely for reliability reasons, but while getting oil from the local kawi dealer the other day noticed they had a kxf 450 and was offered a sharper deal than my yamaha dealer could do. Is it worth the risk -- 1st year bike and all that, have a few friends that have had nothing but trouble with their kxf 250s 04 & 05s. Does anyone have more than 50 hrs on their Yzf or kxf? any issues so far?