This article came at an opportune time for me. I've ordered a Manner's T2 stock (got your DE cheekpiece ordered for it already--thanks!) and am trying to determine the LOP I need. My current set up is the Rem 700 laminate stock with a Limbsaver pad. I had to cut off the steel buttplate that the stock came with and then attached this pad, so between the 1/8" saw curf and the steel plate, I probably lost about 3/16". So, I made a spacer out of 1/4" ABS and slapped it on there. I get a measured LOP on that rifle of between 13 1/2" and 13 3/4"--just over 13 1/2" if I measure to the middle of the pad. Here's a shot of my home modified stock before I put the 1/4" spacer on. (Sounds like I might want to adjust the cheekpiece to be parallel with the scope on the 20 MOA rail.)
So, in reading your article I see the suggestion about having your arm at about 90 deg. I ask my wife to measure this while I'm in shooting position. She's a physical therapist and measuring joint angles is something they do quite a bit. She's getting well under 90 deg for the angle between upper arm and forearm (probably 70 deg--she's going to bring her special measuring tools from work and try it again) and I kinda feel cramped in the shooting position. I'm a pretty average size at 5' 11" tall. I took these measurements with several layers of clothing on to simulate hunting conditions somewhat.
My trigger finger is also easily reaching to the first joint on the trigger when I 'm gripping the stock comfortably. In fact, that's kinda been what I've been indexing off to try to have some repeatability there. I don't think I have large hands, but it feels awkward to try to put the middle of my pad consistently on the trigger.
Are these issues rooted in shooting from a prone position with a stock that's not really designed for that? Will the T2, which I haven't had a chance to hold, provide different and better 'geometry' on it's own? And, the big question, what LOP do I tell Tom to ship this at? I'm not sure that even a 15" LOP would change my arm angle much.
Thanks for the help Shawn and fellas,