Some folks are always looking for something to make them better without putting in the work. That's how golf club and ball manufacturers etc. make their living. My old pops had a saying, "Get a gun and learn to shoot it."
I've got a dozen or so shotguns on the place, all right off the peg as the Brits say. I've got a couple of primitive bore/choke/chamber devices, a $12 trigger pull gauge, and a dry wall square to check the stock dimensions, mostly just because I'm curious, not because I intend to make any changes. I'm an indiscriminate shooter: I can miss equally well with all of them, and often do
