Dang they're like twins! Inch folding rear sight even!
Haven't shot it yet, I am expecting the same behavior.
Does yours cycle with subsonic rounds?
I have been following a thread that may have a solution for us...where someone has been tinkering with the hole sizes in the gas plugs.
Mine will not cycle sub sonic, but with the gas off it is easy to work the charging handle as a single shot. Mine is so over gassed with regular ammo i will not fire it. I was thinking about making a mild handload (super sonic) that will operate the action but not beat the living shit out of it. Keep us posted on the gas valve trick you are monitoring.
One other peculiar note - my point of impact actually moved UP 2 MOA with the can attached.