I picked up a 2002 450 last summer after spending 5 years on a CR 250. I have only ridden in the woods with it (wife was pregnant and couldn't get to the track). Well, i went last night and Holy Sh@#, what a difference. i was immediately faster than on my 250. i ride in Florida so we have a lot of sand, even the clay tracks have a large proportion of sand in it. the 450 eats the sand up!! No more picking a line through the corners, just point it in the right direction and hammer it. I found that going into a corner a gear higher makes the exit faster due to all the torque delivering smooth acceleration and not spinning the rear wheel. I was also much more comfortable jumping. i never got real comfortable on the 250. it seemed if throttle position was not perfect I was on the verge of looping all the time. The 450 was so easy to jump. I was clearing the doubles that used to scare the you know what out of me on the 250. I am in love with this bike and cant wait to get back to the track. I found that the factory settings on the suspension were horrible for me in the woods ( I weigh 250) and especially over the sand whoops (which i love to hammer wide open) but it seemed to work well on the track. I am going to have pro-acton do a whole revalve-respring, but i am now confused as to what to tell him. I spend my riding time 50-50 between the woods and the track and need it working in both environments. any suggestions? Can I have it set up for the track and make adjustments for the woods, vica-versa, or shoot for somewhere in the middle? I am on cloud nine today after last night and thought I would share it with you guys.