Anyone here use em? I'm thinking of putting one on my SBEII. It has a rifled slug barrel with open sites right now. I don't mind the open sites, but do find that I tend to stare at my sites trying to make sure they are "correct" before looking through to my target. I feel like I chance missing opportunities. I also feel like I'm rushing my shot once I do look through to my target and choose a bad placement for the shot.