I currently have a 2000 cr125 and I am planning on trading with a buddy for a 2003 yz250f. I ride strictly off-road at places like Gorman and Stoddard Wells. I've been able to manage with the 125 but the bottom end of a four stroke is amazing. We are going riding this coming Sunday and we're going to switch bikes for the day before we fully commit. What do you guys think? the good, the bad, and the ugly... Anything I should look out for or be concerned about or should I just run with it and never look back?