Ok, Dave, let's mod my shotgun. I have a early 80's 870 Express 12ga, wood stock, 28" barrel. NIB, don't ask why I've never put a round down, I really couldn't say. 1) Measure length of pull so the thumb is 1.5" from the cheek, and shorten as necessary (5'6", 30" sleeve.) Pitch being the complication, which is linked to barrel length? 2) How to shorten the barrel from 28 to 20" +/-? Cylinder choke now, which really dedicates it to home defense, and how does the bead go back on - or can I hillbilly a large dot on front? 3) Any recommended alterations to the standard hunting forearm? I think I'd prefer Police style to fit my smaller hands - it is just an easier/better thing to install that, over cutting up the other? I'm not bolting on a bunch of farkle, and low cost operations are a priority. And please let Dave reply to all three before we tackle whirled peas again?