Oly, I was wondering the same thing out of my SP-10. I have a Rhino .720 ported, a PG .710 ported, a PG .690 ported, a factory Turkey XF (.728), and another 22" barrel with a fixed .720 choke. All of these chokes only produce 100 in the 10" or less, but I want more than that! I am sure there are other chokes that should produce better patterns, but I think it is the FC wad. I guess I am going to have to take them apart and put the shot in my handloads using TPS wads and STEEL powder. Anyone out there - any ideas??? Thanks, John