its interesting stuff Art....but I have to say I have had a couple deer jump my string with a 55lb recurve and 23/64 ash arrows. That bow was whisper quiet, the doe was at 7 or 8 yards. She was completly clueless to my presence, by the time the arrow was there she was almost belly to the ground.

I think regardless how quiet our bows are (obvioulsy quietr is better) The speed of sound still prevails. Now the reaction time I feel is where the completly on edge animal vs the suspicious animal vs the clueless to the world animal is where it all plays into. They still hear it bar none, but may not react to it for whatever reason or may jump to the moon before the arrow arrives!