Hi Lazy Eyed
Thanks for the Welcome! That's what I thought at first as the action did not seem that smooth, so after an initial cleaning and then a 100 shell break in, I REALLY cleaned it (disassembled all the gas mechanisms and made sure all was clean and moving freely) since it was having the FTF/FTL issues (never has had a failed to eject). Since I gave it a hard core cleaning I have tried light skeet as well as heavy factory loads as well as myriad hand loads of different powers, shot weight etc trying to figure out the problem. It seems the most consistent issue is the failure of the shell to release from the magazine, the other items (double feed or jam) happen a lot less frequently.
To this point I have put about 300 shells through it and about the only thing I see could be the issue (assign from a bent cartridge stop) is that due to the extended magazine that the lower rim of the shell as it bases the junction gets caught for a bit on the groove where they join. I probed around down in the magazine and could feel a definitive edge/groove. I may be completely off but it seems that when there are only 4 or less shells in the magazine it always works fine.
Appreciate any insight you can share....