She fires, repeatedly. I had to relocate and reweld the ejector farther back, because in my testing I was hand-feeding spent brass, and never hand feeding a loaded round (safety, you know). The result? The ejector was located just enough to eject a spent round but not a loaded one! (slaps forehead). Lucky I didn't have any squibs - I'm not sure how I would have removed the cartridge. Now, the ejector will properly eject both spent and un-spent rounds. I also had to cut the top cover farther back to prevent stove pipes.
I have to "help" the bolt forward into battery by pushing the "forward assist"/charging handle until it is in battery. It appears that I have some binding issues with the location of the G3 magazine in relation to the feed ramp. I think I need to grind the feed ramp farther down to give the rounds more room to clear.
Honestly, the way the rounds are fed seem to require a great deal of side-to-side motion when the bolt is pushing them into battery. It seems that the G3 doesn't push them as far side-to-side and that makes sense, considering the differences in the G3 receiver vs. an AK receiver. It causes a problem in that the mainspring and bolt really have to push hard to overcome the friction of the bullets. I may be able to help this by trimming the feed lips. I am not sure if a heavier mainspring can be found - that would be nice!
Another thought I had as I'm typing this is that of PBB's experience with the need to trim the rails on his PSL. I may have too much friction from the rails that is making the rounds drag, causing too much friction when feeding.
I am pleased with how it functions and can say that it kicks harder than expected. Of course, that may only be my shoulder's complaining since I was shooting my AK-74 just before I switched over to the 308!