The only thing i could ask for from a parent side is can both the 65 and 50 race first on sun or last on sat? I race the over 30 int class and from the time i get to the track till 10am on Sun i'm wide open and going. I have kids that race at 12 noon on Sat by the time i get kids practice till 11:30 then race at 12:00 then my race at 2:30 there is no time for to fix any issues to my bikes if something goes wrong. If we could race the 50cc backed up by the 65cc class it sure would make life easier.