I am strongly considering an Xr650r (prefererably used). That has been uncorked. For those of you who have ridden WR450's and or CRF450X's previously...how does the 650 unrestricted compare? I've spent several years on a WR but looking for a less expensive yet strong pulling bike. I am 6'4" 240 more like 250 with riding gear. So plenty of power on hand is what I prefer. Also I will consider the 680 kit at some point...does this affect reliability? How much stronger does this mod feel? Ever seen USD forks on an XR can it be done? How out dated is the suspension? I'd appreciate the input. I have yet to see a guy who owns an XRR not absolutely delighted with the bike.