While I disagreed that Bill's example did not meet what I interpreted as the spirit of the regs, I agree that it met the technical letter of the regs.

I recall an incident many years ago (Modified solo?) where there was a rule about how the 'horn has to be heard over the engine' or something like that. Some guy removed his horn entirely, got protested over it. When asked about it he reached into his pocket and pulled out a little clicker device used for training dogs, held it vertically above the engine with the engine off, and clicked it so you could hear it.

This kinda stuff is why I'm so adamant about rulesmakers saying what they mean using the fewest number of words.