Ive hemmed and hawed over getting a thumbhole for years. Theyre great for many things, but I learned the hard way with a shotgun while duck hunting...........
DONT put your thumb over the top or your nose bleeds for a while

. It was my buddies shotgun, and I didnt have time to think to put my thumb in the hole first.
There are thumb hole/short roll over combo stocks Id still try, but when things happen quick, be they ducks, deer, or elk, muscle memory takes over, and sometimes it hurts

Im still undecided.
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With a little try, No obstacle is too steep to see whats on the other side of the hill.
GOD,GUNS,&GUTTS MADE AMERICA, LETS KEEP ALL 3!winmag