Rogue flyer
hard ball won't work in that situation, unlicensed freq's mean he has just as much right to it as you do, and intentionally causing interference (shooting him down) will be your problem. make him mad and he may decide it is time to upgrade radios and get one of the synth radio modules. random freq every time he flies...
I agree with the free membership, half the fun of flying is the bs stories from flying buddies, flying solo 100% of the time isn't always enjoyable.