Okay so as the resident ex-junior of the group, sounds like your son has a bit to learn. First, junior gears shouldn't be an excuse. If you can spin fast enough to succeed spend some time learning to spin (aka be able to spin at 150+ rpms for extended periods of time, not just sprint. Hell even after a season on big boy gears i can spin at 180+ rpms in a sprint). Secondly, his idea of going to the front and slowing the race down in the corners will get him pushed off the road, especially in any real p/1/2 race. I know i would come right around and him and push him out of the way, what do you think a UHC or other pro team rider would do? It sounds like your kid is relatively fast, don't let it get to his head, becasue trust me, there are always faster people, and more aggressive people.