Ive been riding a DRZ400 and considering buying a MX bike for this summer. I ride a little bit of everything, woods, trails and track. Most of the guys I ride with have now bought MX bikes and its time for me too. Im thinking about getting a 2 stoke 125 or 250. I'm 5'8 170lbs and im looking to get faster, build confidence and become an overall better rider. What would you recommend? I come from a car background and understand the progession of how to teach someone the correct way to become a good driver. Can someone explain the progression for MX?