I love my 04 YZ250F! Considering an upgrade. I ride exclusively at a tight, hard pack mx track here in HI. Sometimes almost a mini supercross... I'm 40, 6'2", 165lbs and a vet intermediate. Athletic but don't always race. I never considered a 450 until I read some reviews here. I rode one of the YZ426s before I was back into it and it scared the crap out of me. I'm looking to be as smooth as possible and stay out of the ER. I want to be in control versus having sheer power. Actually on the pipe with my 250, though. Mahalo! P.S. I posted to YZ250F site too. Is this a no no for the newbie?