I have an older browning 425 sporting that I shoot very well. A few years ago I purchased full length sub gauge tubes for it. The gun already weighed 7.8 pounds. It now weighs almost 9 pounds but with the extra weight of the tubes it settles into the hands very well. We just had a .410 skeet tournament at our club a couple of weeks ago and I shot 96 with the tubes installed. I think you will like tubes in a SxS or and 0/U.