I have been road racing for several years now and finally come to the realization and suggestion from Eric Wood that I need to spend some time in the dirt to hone my skills. I'm embarrassed to say I have never ridden in the dirt and took up road racing after being bored with the street after 5 years. I am 6 feet and around 210 lbs. In decent shape. I want something that isn't too intimidating but I don't want to grow out of it too fast either. Mostly weekend warrior. Would a 250 4 stroke be underpowered for me or would a 400 be too much to handle starting out. Or is a 2 stroke a better choice? Thanks in advance for any suggestions.