The wife and I hunted together last Friday evening off the ground and as we sat about 10 feet apart, I called "Texas style" with a rattle bag, grunt and can calls. I made as much noise as I could to sound like there was one H3LL of a fight and it paid off very well
This buck came in to 6 yards where Patty made a perfect heart shot on him and he dropped in sight after a 50 yard scramble. We weren't using any kind of a blind, only sitting in front of tree stumps. her bow set up was an '05 Bowtech Defender set at 55 pounds and 26 inch draw shooting Easton LightSpeed 400's with a Muzzy 100 grain 3 blade. Though the arrow stopped in the off shoulder, it centered the heart and it was all over in 7 seconds. Her K.E. of the arrow was around 48.5 foot pounds,, all she can generate with her draw and arrow weight.
For hunting,, shoot as much K.E. as you can develop and shoot accurately with your set up and simply live with the results, you'll do just fine