But that paper plate does not twitch, flinch or jump. Lots of us have watched deer @ 15 yards duck our arrow. But just to further the debate some more, how fast does the sound of an ultra-quiet, vibration-freebow travel??
While that's certainly true, as quiet as today's bows are I would also bet you that a deer doesn't even HEAR it at 50 to jump the string anyway. As you know all they are really doing is reacting to a sudden noise, and if they don't hear it, they can't react to it.