John has a newer video which deals with stock fit and discusses that gun fit for many, is not just one set dimension but often a range of stocks you can shoot, with adjustment to how you shoot. Cast off is often more important than drop and we rarely consider it enough. Too low a stock can be compensated to somewhat by raising your head but too little cast off will have you looking down the side of your gun. The one thing they did not discuss is pitch. Perhaps another time.
But they did mention different “games” will require different measurements but that close is good enough 80% of the time, for average shooters, which is why you can pick up any gun and shoot it reasonably well but to get the last 20% out of it will require customization. With video gun photos it makes sense. A perfectly fit gun should point to where you are looking and hit the bird. An imperfectly fit gun can be shot well if you compensate for the fit.
