Hi guys, I need some advice here. I currently ride a 2009 KTM 250XC. I bought this bike after many years off from riding and I had plans to exit he MX world for good after a bad wrist injury many years ago. Long story short, I did 2 harescramble races all year and ended up riding MX after my wrist ended up being OK. My 250XC handled my local track very well (a little soft) but I would like to get back to a proper MX bike. I rode a friends 08' CRF250 as well as a 07' CRF450. I found the 250 felt extremely small and thought I was riding an 80, and overall I was kind of uncomfortable and timid on it as I didn't feel the bottom end power was there compared to my 250XC. The 450 felt completely different and I could ride it balls-out right from the get go as I felt much more confident on it. However the 450 was noticeably heavier and not as easy to flick around the corners, and I felt I had to concentrate on controlling the added power and not letting it get away from me, unlike with my 2stroke 250 where I could let is scream and not worry to much about it getting away from me. I am 5'11" and 180lbs. Judging by what I just said it would seem the 450 is the way to go for me, but all my friends think that if I set-up the 250 properly then I will be much quicker on it and could last longer. Has anyone had any similar experiences?