Well... I was able to go pick them up today.
I am impressed..... IMHO the quality is better then USGI, OKAY and most all other metal mags ( at the moment I can't think of any metal mag I own that has been better "out of the box" )
Solid, excellent QC and fit and finish, no sharp edges on the spot welded splines and a VERY even linear seam, an anti-tilt Steel follower, a unique floor plate, every possible sharp stamping edge has been de-burred ...
I will post photos later... the lawn needs my time right now... arrgh....
All in all.... If you are on the fence about the QC ... don't be, I might just buy more !
I won't be able to test fire them until the weekend... but hand feeding is very positive, no drag on the feed lips at all while hand charging / hand cycling.