RE: How fast is fast enough?
the speed is plenty fast enough as long as you are accurate and you can handle the draw weight with out getting the shakes.remember the most important thing is being consisitant and comfortable first. i have seen to many people over bowed thinking they are going to be a killing machine until they get out there and find out in the deer woods its a lot different.as long as you can hold your bow arm straight out and draw your bow back with your back muscles to yuor anchor pt and be steady and not tire out to quickly your poundage should be fine to become more consistant.try it sitting in a chair and facing the target or siting on the ground with your legs spread out in front of you and draw the same way as long as it is comfortable you should be fine. your hunting setup sounds fine and will kill a whitetail with out any problems. good luck!