I'm 6' and 240 (before breakfast...) I rode Rooster's WR250 for about 20 miles worth at DirtWeek this year. It's uncorked, and while I say it's the perfect woods bike for me (track queen), it fell flat in the open for me. I did like the low end pull up to about mid throttle though. If all I were doing was riding through trees with only short open stretches, I'd buy one. By the same token, I wouldn't be all that comfy with the YZ450 in the trees. A bit too twitchy for me in that close of proximity to trees. So I think I'm agreeing with MrLuckey here. The WR450 sounds pretty good.