Bruce Buck says: "If your pitch is between zero and two inches, you are in the ball park. If not, a little shimming with bits of plastic will bring it around. If you do not know what pitch is, leave it alone. Our main concern today is height and cast and their effect on point of impact."
So apparently he doesn't think pitch has anything to do with point of impact.
I have a gun that has 5" of pitch. I laid the gun on a level surface and raised the barrels up 2 inches then put a piece of wood under the barrels to keep it there. I then took a square and put it against the side of the stock so it was flush with the end of the toe. The line I drew will take 5/16" off the heel to get the 2" of pitch and only 1/16" at the center of the stock where I measure LOP. It would take off even more wood from the heel if I go to 0 pitch. If that angle doesn't effect point of impact as Buck implies and what the silence of those others implies too then I suggest it may only have value for ease of mounting. If I take that 5/16" off to get 2" of pitch that's 5/16" less wood that has to clear my arm pit when mounting. So maybe the 0 pitch your gun has would have an advantage for quick mounting, or maybe not depending on how you mount the gun and how long of a length of pull you like. The longer the LOP or the more layer of clothes you wear the more value 0 pitch may have.
Larry
