It might be a little difficult to grab the radio and transmit while holding the quad transmitter on short notice? Sounds like overkill to me, just stay vigilant, hey if he's flying illegal and he crashes into your quad and dies your off the hook. I had a twin engine Cessna come up behind me full throttle while out in my boat 25' over my head, that's right 25' no lie, if I was facing him I would have seen him coming I would have thrown can or cushion at him. I like planes and goofing around but this guy pissed me off! Point is he was so low and so fast I did not hear him coming and I was parked with engine off.