I was once told by a well known bmx trainer that Kenny Cross knows how to ride his bike, he just needs to get faster. So what does that mean? I took it as meaning that he need to start training away from the track, and its helped tons. Sprints, squats, plyos, weight lifting, etc. There are many different ways to get faster but my biggest tip is consistentsy. On a regular basis. It doesn't really do anything to train a couple of days and then quit, work it into your daily life and it will pay off. My .02 cents.