Cyclone,
You need to take a better look at your physics book.<img src=icon_smile_dissapprove.gif border=0 align=middle>
It's falling 32' per second after the first second, 64' per second after the next second, etc.
The formula for distance for free fall from rest is distance = .5 * g * t(squared), where g = 32'/sec and t = time.
The time we are dealing with for a 20 yard shot on a 280 fps arrow is .169 seconds. Plug in the numbers and you get .425 ft/sec/ rate of fall by the time the arrow hits the deer. That's 5.1" in .163 seconds, not 19.2" in .05 seconds.<img src=icon_smile_approve.gif border=0 align=middle> In .05 seconds the distance of the fall would be only 1/2 inch!
No one is arguing that a quiet bow isn't important. I also hope no one is saying that a recurve or longbow will prevent them from jumping the string , because it won't. What I'm saying and the point of the article, is that
if a deer jumps the string then a faster bow will make a difference. Your miss will be by a significant amount less. The examples in the article showed that the miss will be about 44% less with the two speeds compared. I don't see how you can even argue this. It is simple math and none of his figures are off.