It's easy to overthink this.
A decade and a half ago the Beretta 391 was all rage.
Nice aluminum alloy frame gun, light, splendid dynamics.... for most.
The target shooters got a hold of these and of course they knew better than Beretta and their years of experience and testing.
They started to hang weights all over them, defeating the design entirely. Even Beretta eventually developed a buttstock weight that was standard in some models. It sold.
No scientific testing was done on this, they just dorked around until they got something that THEY THOUGHT played well for them individually.
Shooters are sometimes not the brightest bunch, and I include myself in that demographic. They are going to modify and customize. It's just part of the hobby. A great deal of this business is simply in your head.
You can quantify and write equations all you want, it's not going penetrate a real shooter's skull.
