IMHO: This is all well and good and ''better" in "shotgun" configuration. When I was a kid; I taught myself to shoot flies off the patio blocks with the 880. BB's caused divots. Pellets just "smeared": Either way; the fly was gone: At 5ft it mattered not; "1" or "10" pumps: The fly was destroyed. The fly was the focus and the sights were "background".
I couldn't hit shit with a shotgun (other than aiming); Through OL and FS I leared about cross dominance and squinting my left eye. Cross dominance is a bitch when you can shoot flies @5ft like Bob Munden: