RE: How long can you hold at full draw?
yes I also practice at holding full draw for a long time, sometimes I will even practice stopping a moving deer with a bleat and making a quick shot. Things like that I usually don't work on much until it gets closer to hunting season though. This time of year I'm usually just working on my form and shooting tight groups, but once it gets to like september I shoot less arrows, but try to shoot different hunting scenerios.