Woohoo!
Range day was a success.
Went through 50 shells without a single malfunction.
Ran all full power 00 buckshot. Ran through as many different brands as I could, and different conditions. Mixing brands into the tube, fast firing, slow firing, full tube, single shell in the tube, etc. Federal, Remington, Winchester... everything load and every test performed flawlessly.
My experience is that the FFT shell lifter is garbage. If I would slowly move it I could get it stuck. I had many issues and tried to fix it a couple times where I got it to move like it should but eventually went back to rubbing. Put your oem lifter back on and see if it solves the problem.