Thank you both for the welcome and the observation about decisions around this time of the year.
Mag would be great but Mag Tactical had promised a 7.62 set in mag would be next originally in 2012 and given the fluid political situation, it's a wonder whether they will take the plunge. It's not smart to hope for vaporware to materialize.
I originally thought a MATEN was probably the best bet, even though it weighs in at 30 oz for the set. Then I read posts on this forum that the SI came in at about 24 oz for the set, but still seems to be having quality problems - missed machined boss and poor fit. BRO is too tacticool for my tastes and AR10B seems to have lots of followers but no comparisons between its fit or weight, and I worry about AR10B's ultimate demise as DPMS patterns take over.
So what to do?