Do most of you cut your stocks shorter to customize the length of pull? I picked up a really nice late 70's Wingmaster 870 and was reminded this weekend when testing it out that my ideal LOP is about 12.5", not 13.5". I'm hesitant to cut such a pretty stock on something this old. Do most of you cut yours, assuming you're not 6'2"? I'm pretty average height so I'm guessing most people would want a shorter LOP, but I don't hear of people cutting their stocks that often. Does the resale value take a big hit if you do?