I currently ride a 2002 YZ250F with a T4 pipe and the 2003 auto decomp factory cam. I love how my 250 handles, but at 6'3", 225lb, the 250 just lacks a little punch for me. I split my saddle time probably 50/50 between trail riding some hilly quarrys and rec riding some local tracks. I don't race (except for the "races" that always break out during our rides!), but I love to go fast and jump. I found a 2003 YZ450F that seems to be in pretty good shape, but I have never ridden one, and I would like a little input on the plusses and minuses of going to the big dog from my little pup. Thanks!!