Ok, I shot the M9200A1 today. Aside from having to learn a new loading procedure, the weapon cycled anything I put through it, from Hornady 00 buck to cheap wal-mart birdshot. I had zero malfunctions. The factory folding stock was very comfortable and was made by Choate. The weapon is chambered for 2 3/4 and 3" shells, unlike the first production run models which were only chambered for 2 3/4 shells. Follow up shots were very easy and the weapon pointed and patterned nicely.
I also took my 11-87P along for comparison. The 11-87P had slightly less felt recoil. Yet, the M9200A1 seemed to recoil more straight back whereas the 11-87P recoiled more upward. This could be due to the folding stock configuration.
I experienced zero malfunctions with the M9200A1. The weapon ran like a champ.