Wanting to purchase an M2 Super 90 for my short wife who has a fitted LOP of 12 1/2". Does anyone know how much exactly can be cut down from the comfortech stock to achieve this LOP. I know that coupled with the shorter recoil pad it can be brought down to 13 1/2", but is there enough extra on there to get down to 12 1/2" without compromising the integrity of the comfortech system??