Looking hard at the shockwave as a truck gun/home defense gun. I havent been able to shoot one since I dont know anyone who owns one and none of the ranges Ive checked with rent them. Im trying to decide between the 12 or 20 gauge based on handling. Is there a big difference in recoil between the 12 and 20 gauge shockwave? Would the 12 gauge be harder to handle under stress, duress etc? I currently only own 12 gauge shotguns and would like to not have to buy another size shell but if the shockwave in 12 gauge is too snappy for practicality purposes then I would consider the 20 gauge and start stocking up on 20 gauge shells.