I bought a set of mags from Dave at hical awhile ago, and thought I would chime in. They are probably gen 1 or gen 2.
At first i was having the same problems as most of ya all in here. I contacted Dave and got the same great service that everyone has experienced with him, and got a different set of feed lips AS WELL as Dave sent me a mag for free since he was having a special price on 3 mags at the time, and when I bought my mags I only bought two. The guy and his service are just second to none, I cant say it enough how I was flabergasted with his service.
Anyways I started out with these mags shooting the bulk 525 federal or winchester packs (I forget which one now) and I was experiencing quite a few stove pipes, and failure to ejects. Like constant, it was frustrating. I switch ammo to some remington something or another high velocity and that was even worse. I bought a bulk pack of cci blazers (they used to come in cases each shell in a slot, not just thrown in the bulk pack) and I dont know if it was the ammo I was using or just the fact that i had pushed enough ammo through the mags by this time, but thats when the mags started to work well. As im nearing the end of the cci blazer bulk pack 2 of the 3 mags are working flawlessly. I have two of the mags attached together and use those the most, so the third mag sits in a drawer most of the time, but last time I used it, it was working pretty well.
I went to buy some more of the same kind of cci blazers and couldnt find them at wholesale or cabelas in Saskatoon, so I bought a huge pack of cci stingers, but have yet to try them out.
Guess long story short, I was frustrated as hell with these mags at first. I do miss buying the cheap bulk packs, but it seems like cci blazers and some time shooting through the mags seemed to have make mine fairly reliable. For awhile I was ready to throw my sr-22 out and find a nice reliable cooey semi-auto, but the mags when working have sure made the gun fun to shoot again.