If you rocked your hand backwards, over the reciever’s curved operating-rod handle, and let it release, you never got the dreaded Garand thumb. A CMP veteran showed me that little trick. Never had a bolt-imprint again.
CC
Thanks for That Trick!
My dad’s cure for the M1 thumb was that he carried the BAR!

Note that the strap on the AR-15 is not correctly installed. The center gun is my new SOCOM 16, an M-14 (or M1A) derivative with a 16.25 inch barrel. I bought the wood stock for it about a week after I got the gun. It looks very nice in wood.
The Garand on the right was used in Korea. My friends and I all bought one when they were incredibly cheap (like under $300 if I recall correctly, long time ago). Mine's been re-barreled, glass-bedded, I finished a new stock, it has match sights and a match trigger. It's very accurate.
The AR on the left is a Clinton-era Bushmaster AR with match trigger and the chrome-lined bull barrel. It's very accurate, especially if the sling is installed properly and used! :-)
I fired the M-1 left-handed in the Marines. Drill instructors allowed it so long as I didn’t get my fingers caught. I learned real fast how to load a clip with my right thumb on the operating rod and the clip and four fingers into the receiver. Never did get my fingers caught.