First post here just looking to get some help. I've decided after shooting 10 shots yesterday out of my Sako AIII 7mm RM and wking up today with a nice cherry on my shoulder that i should probably look into getting a new Recoil Pad. I've noticed that Limbsaver is probably the way to go and really like the one that came with my TC triumph. My question is which one do i get? What size will fit it or will it have to be specially ground down? If so can i do this?