I am in the process of selling my 2000 YZ125; great bike, bad choice for my needs. Anyway, I might want to try something different and was thinking of an 250EXC. I dedicate about 50% of my time to scrambles and grand prixs, the other to trail riding in Southern California. I would gather top say that the EXC is the most versitle for the aforementioned type of riding. In looking for a used bike, should I stay away from a particular year?