Larry...Larry...Larry, Dog-gone-it---DON'T MAKE ME COME UP THERE!
You keep regurgitating this same misinformation time after time after time. You insinuate that the 28-ga. Repro M/F chokes have constrictions that make them useless....and that my friend---just ain't true. I have 28-ga. Repros with Q1/Q2, IC/M and M/F choke designations. Guess which which set of bbls. I consistently score better with on the sporting clays and 5-stand courses I usually shoot? That's right---the M/F set. You really need to get out there and shoot them rather than diddling with some gauges--you'll be enlightened!