I have given up on duck hunting on account of a really bad right (shooting) shoulder. 5 surgeries find me with half of an artificial shoulder. I'd do some duck hunting if I could get the felt recoil down. Help me explore my options. Switching shoulders is off the table. I could drop down to a 20 gauge. I don't know how much effectiveness I would lose with that. I could shoot my Beretta AL390 with a PAST recoil pad. I have used one shooting rifles off the bench and I don't think it'll take enough edge off of heavy duck loads. I know there are shock absorber type devices out there, but know nothing about them. The latter is where I am focused right now. Who can give me the scoop on these devices?