RE: bow poundage question
In general, you will not be able to comfortably add enough draw weight to increase your speed any significant amount.
While many get hung up in the speed and KE game the simple fact is that if you don't shoot it well, the extra speed and KE is not worth a darn.
Pick a weight that is comfortable to you and that you are able to draw, hold and shoot well. You will be far better served with a slightly slower but accurate arrow than a blazing fast one that is off the mark (gut shot is gut shot regardless of you have 45 ft-lbs of KE or 80)