I use the STI/Para/Bull insert with a speed shooter specialties shim behind it.
http://speedshooterspecialties.com/catalog/displayitem.php?rowid=774&type=CR%20Speed%20Versa%20Pouch%20M&P%209/40/45%20Spacer
How does the CED bag compare to the Shooter's connection bag quality wise? I just got the shooter's connection ultra bag but it seems a little too big. I'm thinking about selling the shooter's connection bag and get the CED bag in place of it.
I'm not sure about NY, but in CA you can get the standard cap mag as a rebuild kit and block it so it only holds 10 rounds. Maybe you can do the same in NY?