Was debating the purchase of a super black eagle II, M2, or a Beretta. I was told Benelli's are a bit tough on the shoulder. You guys have any personal experience with this? Also the M2 and SBE II didn't have the rubber cheek weld or the rubber small string of arrows running down the side of the stock. Does this mean they still have the same ComforTech recoil system or not? What's the difference between the M2 and the SBE II?