Just got my jellyhead choke for my SBE II and patterned it. Tried Win HV 3.5 #5 and #6, Federal HV flight control 3.5 #5, Federal Mag-Shock flight control 3.5 #5 and #6.
Went with the Federal Mag-Shock 3.5 #6, downright awesome pattern.
Curious to how well 3" in the above loads will do. Would also like to try Hevi 13.