Well with completion it all came down to money, the more you had the greater chance of success, a mate of mine was a track racer, excellent rider but someone always had the better bike, reason l threw in the towel with motocross, more money secures victory, and there are plenty of rich boys involved in racing who have access to big backers, he's getting old now at 66 far to old for racing but we are still good friends after 40 years, he had a massive stroke a few years ago, they took his licence for a while, but l helped him get it back he still builds the occasional track racer and rides he has a yam now l think it is a 300 twin an R bike from when l last saw it.