This discussion comes down to one question: Should the AMA force all its chartered clubs to adopt a particular rule that the OP favors about when non-club members can fly at their fields, or should the clubs be free to do what they think best? I don't see any reason why the AMA should force some one-size-fits-all rule about this on all its clubs, and the OP hasn't really tried to give us one, except for saying the rule he wants would be better for him. "I'd like this rule so the AMA should make every club adopt it" is not the most compelling argument I've seen. In the absence of serious safety problems, why shouldn't each club be able to arrange its affairs the way its members want?