IIRC, Springfield Armory (the real one) found during their post-WWII rebuild of M1's, that starting with a 'fat' stock was actually good. Can recall seeing pictures of the rebuild process when they sanded stocks. Lost many for continued service as the sanded stocks were judged to0 thin for reuse. This carried over, years later to M14 production. My M14 stock in Basic was fat. So was the on of the rifle I was issued in Germany. Only one that fit flush with the butt plate was the fiberglass stock on the rifle I was issued in Vietnam. Years later, when I purchased an M1A (fat wood stock), the first thing I did was purchase a fiberglass stock from Orion 7. Odd thing: with the wood stock, come-up for 200 yards was 8 clicks. With the fiberglass stock it was just 2 clicks.
"No man's life, liberty, or property is safe, while Congress is in session." Mark Twain