Hey guys, new member here. I've shot shotguns before and am not new to guns, however the mossberg 500 is the first actual shotgun I've owned. I purchased it with a pistol grip (only, no stock) as it was a great deal and I knew I'd be upgrading to a new stock anyway. I didn't even shoot it like that but ordered the ATI side folding stock with pistol grip. My question, how much does the stock effect the recoil? After 20 rounds it hurt to shoot, and I don't consider myself a small guy. My wife's Winchester defender with the factory stock didn't have the same problem and I could have shot that one much longer. Do these kick that much harder than other shotguns, or is it possible it's my stock?