I'm in the market for a replacement stock for my new shotgun. I don't know much about shotgun shooting, but in my research I've read a never ending list of posts about length of pull. But most of the posts seem to be aimed at trap or skeet shooters. If you're just keeping a 20" Mossberg on deck to repel home invaders and/or for shtf scenarios, is it worth obsessing over 1/2" either way? I'd love opinions because I really am ignorant on this subject. I was just gonna happily buy the standard Mossberg stock to replace my AR style before I fell into the rabbit hole of the l.o.p. debate...