Sorry to hear that you do not like your Survivor stock.
I, like many others here, am quite fond of the Survivor. I too own a 308 version, so I pulled it out and tried to see your issue. I am unable to understand the "pinching the trigger" as you put it. I feel that I (6'3" and 220 lbs) have plenty of hand room, and am consistently hitting 3 under 1" @ 100 yards.
Maybe your hands are larger than mine. In any case, welcome to GBO and good luck with your new project.
RackWrangler