Two beads aren't really necessary, you can shoot without any, and I have many times. If you focus on the target, you never notice the beads or barrel if the gun fits. I have over 15 shotguns, and the ones with vent ribs I tend to want all the same, so I install mid-beads on them and Bradley white fronts. Still got a couple of barrels with plain brass beads, I will get around to them one of these days. The only kind of sights that really bother me is those bright colored light pipes that people put on the end of the barrel :barf: , very distracting, draws your eyes to the barrel instead of the target.