Hey guys, 1st year waterfowler here. Been using my 870 with 28" vent rib. Its fine. My xmas bonus money is going to be burning a hole in my pocket here soon, and want to get into a semi. I have narrowed it down to a few, but I realize I don't need a 3.5" chamber for what I do. I do want inertia system. Looking at the Benelli BEST finish, looks pretty cool. Comes in Ethos and Super Black Eagle models. Looks like Ethos is just the 3" chamber model of SBE. Anybody run one? Or compare it to the M2? Thanks.