Ok, so I ripped apart the drum and did a little go-to on the internals. Turns out a part that makes the drum stationary when loading and advancing isn't working right, explaining the jamming and loss of available rounds, but I don't know how to fix it. The drum works in that for the first 10 loaded rounds, the drum is stationary and a little arm retracts into the little grey part of the drum, after which the drum rotates for additional loaded rounds (which it's not totally). I can't post a pic since I'm on an iPod, but I know that at the drum end of the "little arm", there's a little plastic piece that holds the tensioner and I think it's sticking out too far. Is this descriptive enough for you all?
They are making more. There's a bullpup flywheel gun that runs on clips coming out soon called the Rayven, but nobody knows when it's coming. It looks pretty sick too. Google it and you'll see what I mean.