RE: This is why its called hunting and not getting!
A couple of things:
1) A .25 sec makes a difference for about 25 yards or less. Based on a deers reaction time ( a relaxed deer),I can shoot a deer out to 21 yards before it can duck my shot. I did these calculations one day while sitting in my stand. My bow shoots 275 fps. Bottom line.... the deer needs to be relaxed.
2) It's not the 40 yard shot it's the hunter. There are many people who are competent to take 40 yard shots. There are many who are not. I believe that Rob/PA/Bowyer took a doe at 41 yards this year. Atthis range it is not the speed that matters but the accuracy does. No matter what you shoot, if you're not accurate 100% of the time at 40 yards, you should not take the shot. This includes things that hinder accuracy such as bulky cold weather clothes if your not practiced up while wearing them.