When target shooting with an aperture (peep) sight (.040 to .060), do you bother to center the front sight in the rear aperture, or do you just concentrate on the front post, or globe, being where you want it on the target? I guess this would depend somewhat on whether you are doing rapid fire or slow fire. I find myself doing a little of both in slow fire, but I was curious as to what others do. I am shooting service rifle for the first time with a newly acquired Armalite M15A2. I have never competed in rapid fire before.