Bump
The problem has since gotten worse after changing the fill valve. Now I can barely get a shot or 2 out as the hammer just comes down but no sign of gas being released. I've played around with the release valve and how tight it is to give the valve some height and it hasn't really made a difference. Gas is being properly filled, seeing as how I have to expel quite a lot before working on the magazines. I've played with the tension of the hammer springs and leaf-spring and it's had an effect on the recoil in the other magazines but not so much solving this problem
As like before, the other 2 magazines are just fine. Really don't want to have to get another magazine if I can figure out what's wrong with this one. Debating on getting another release valve to see if that was the problem. I'll add the video to this post as soon as it's done uploading
Here's a quick video. It should still be processing
http://youtu.be/ReU98n_EldM