LOP matches what I would expect with hunting jacket on, using it for recoil mgmt. can sight in with t-shirt and shoot all day vs. the hockey puck hammering my shoulder trying to sight in.
There is your answer. All it will take it catching you in the wrong place. And your brain will associate it with pain. Caught a M38 mosin in the collar bone, during a rapid fire. It was a while before shooting it again. It wasn't till I got a shoulder pad, that I was able to shoot it without my brain saying, this is going to hurt?
Its no different than people zeroing with lead sleds, and then go hunting where most of their shots are offhand, or leaning up against a tree.
never seem to feel a shot when hunting, thick hunting jacket and usually one shot, I will test on and off to see how bad the POI changes
I doubt that the slip-on pad will make any difference.
What could make a difference is the varying zero between being held in you hands and bouncing off a sand-bag.
The rifle itself will shoot the same but you may shoot that rifle differently because of the slip-on pad. Different LOP, varied eye-relief, etc.




























