Are the Fatboy internals the same as the sumo and most of his other moderators? I like the look of the Fatboy but wonder if it will work as well as my sumo.. does anyone have a picture of the internals?? Or have used a sumo and Fatboy on the same gun and could tell me if they work the same.. I would be using it on my panthera compact... The sumo works great but I'd like something a little shorter.. thanks in advance