So I took it out to the range today. And honestly mixed results. I took the first rounds to get the gas setting right per manual and after that had mixed feeding issues. The good news is that it was damned accurate and fun to shoot. The recoil was downright pleasant compared to SCAR 17s which was already negligible. Noticeably less than an m1a or hk91. Grouping was well within an inch at 100 yards.
Now for the bad, first off is I believe it to be magazine related. I had 2 different types of issues distinct to the two types of mags I used. The DSA mags would function 100% reliably IF the initial seating worked, problem was the 2 mags I have the first round tended to pop out once rocked into rifle. I could reproduce the issue without closing bolt, it just would pop out of the top when inserted. Next up was 3 mags I received from Numrich that were sold as "FN" but came in cosmoline and a little piece of paper in hebrew which leads me to think they are isreali which are known to be good quality. On these, the round never popped out of the top, but several feeding issues were experienced. The springs were noticeably weaker than the DSA mags so I have to think they are worn out and need a refit. In any case, I am leaning towards the magazines being the issue. One other note is that the isreali mags were solid in the rifle where the DSA mags had some wiggle, leading credence to the latest and greatest news that DSA mags still suck.
I am going to order different mags to give them a try, moses mag and steyr mags specifically. If that fixes the issues than great. If it does not I would have to think the receiver is out of spec and back to DSA she goes.
Sorry for the wall of text but wanted to be thorough, also adding this link from FALfiles for relevancy:
http://www.falfiles.com/forums/showthread.php?t=398345