AMA's safety rules - gas engine specific
Bad idea. One reason nobody mentioned yet is that such a safety regulation by AMA (or your AMA club) has one substantive effect - if you were to get into a liability situation and did not have an inflight kill switch installed, your liability would not be covered by AMA insurance. Who the heck wants another weasel hole for the insurance company? I think we already have a more than ample supply of them.
Abel