John's on the pulse of what the "serious guys" are shooting. I don't think many "tune" their guns, as far as over boring or forcing cones. The truth is that most of the top comp gun manufacturers, P guns, K guns, Beretta, CZ, have worked this out to the point that what wins shoots is skill. Every top shooter is shooting a gun capable of winning and none are exactly the same. Fact is that the top guns occasionally change gun sponsors, and still win. It has more to do with which company offers the sweetest deal than which gun is the "best".
Very few of the top guns today are habitual "choke changers". I do not mean that they never change chokes, some do when faced with a very "out of the box" presentation, such as a 10 yard fast rabbit, but many very seldom change chokes, preferring to shoot fairly tight chokes all the time. Do the pros really "believe" in the brand choke they are shooting? Sure they do. Confidence is a huge part of the game. But any precision manufactured choke tube will win. Hell, it doesn't even require screw chokes at all. I shoot a fixed .023" bottom and a .020" top in my MX-8, and do not feel handicapped at all. I think I hold my own pretty well, when you put in perspective the number of registered targets I shoot a year.
SRH
