Describe your physical build, Steve. Tall with long arms, etc? I regularly shoot a 15.25" pull at sporting competition, but actually like about 14.75" to 15" for field shooting. But, I'm 6'2" with 34" sleeves.
When I first started competing in the NSCA I modified a gun with an adjustable l.o.p. buttpplate, and built up the comb with cardboard and duct tape until it hit like I wanted it to. Awhile later I went for a gunfitting, shooting at a pattern plate with a try gun, the whole 9 yards. The gunfitter wrote down what he found my measurements needed to be, for me to take home. Lo, and behold, when I got home I measured my gun that I had fitted to myself and the measurements were within 1/16" to 1/8" on all measurements.
FWIW, Jack O'Connor once wrote that most people shoot a rifle stock that is too long, and a shotgun stock that is too short. I feel that you should make every effort to get guns that fit as nearly as possible to your requirements, but exacting measurements that "strain at a gnat" are overdoing it. The most important of all the dimensions, IMO, are drop and cast. If you're not looking down the center of the rib, or if you can't see the bead from excessive drop when lightly cheeked, or if you are looking too much down on the rib, it is hard to overcome.
