I am wondering about putting a mercury or tungsten bead recoil reducer in the stock of my fairly lightweight .375 H&H. I won't use a muzzle brake because of hearing concerns. I have read about the "kickstop" used by some German hunters, and the mercury recoil reducers sued by some American competitive trap shooters, but have no personal experience with them. Do they reduce recoil enough to be noticeable? Change the balance and handling enough to be a problem? I know I will shoot better if I get beat up a little less, but everything as a trade off. What are your thoughts?