My preference would be best out of three seperate runs, a run would be from opposite directions averaged together. That way if you go up too lean or rich you could try again. You should have an ondeck plane and then they have a time limit to get airborne and make their run. I don't think you should have classes, run what you brung and the fastest wins, period... Let me know when you have it and I'll come down and I know of at least one other person that would also come...