Assuming you are trying to minimize recoil, The difference in felt recoil between 1oz and 1 1/8 oz is marginal. 1 1/8 puts more lead on target and there is a lot more data available . Balistic Products " Advantages IV " manual lists lots of 12 ga 1 1/8 target loads, including several loads using Unique. From there, you can work on getting the gun comfortable to shoot with a kickbuster lace on
pad or something similar.