A recent trend in Sporting Clays has been the Mid rib. I had mine installed on a Beretta 686. Most folks drop their head down to mount the gun, then raise up to see the bird in the middle of shooting, IE the miss..... With my mid rib, my head stays erect and i eliminate the raising my head. It also brings the recoil a little lower in the shoulder pocket. That creates a perceived reduction in recoil for me anyway