ORIGINAL: stalkingbear
If you go to a thumbhole stock,you'll have a lot of trouble trying to operate the tang safety because you'll have to totally lose grip to operate the safety then put thumb inside thumbhole-a lot of movement when a turkey is in front of you.
I put one of the AR-15 type collapsible stocks on my Mossberg 500 and am having the same problem. I think I'm gonna get an 870 for this purpose and keep the 500 with the original wood stock just because it's such a PITA to get to the safety. Just my $.02.