I know the field that you are speaking of and the flyers involved, since the field is next to a state park and sound senstive area I would ban the two pilots from flying with the nelson motors , I have seen these guys fly and neither of them are qualified to fly these aircraft, also because they fail to follow the rules and fly down the runway, lose your flying site for a couple of uncontrollabes not worth it,also because there are very few sites in that state and 70% have gone away!! I remember when we would all stop and watch the one guy crash at least 2 jets a weekend sometimes 3, at the field Iam at now if a guy flies a heli every one gives him a little of his own time to do so as well for guys like me that like to fly fast and also do free style, helis and Q500, if a guy comes out with $50000 worth of airplane we watch him, and let him know that if he has a mid air regardless of who did what he has a $500 maxium claim, let us not forget where out to have fun screw trying to impress every one, My 2 cents worth from the perspective of having been there and glad Iam not any more