Got my mag Saturday. Seems to work OK, but could use a little sanding. The spring got caught up a couple times and needed a little tap on the shooting bench to break free, but aside from that it worked just fine. Since I replaced the extractor, my bolt doesn't seem to want to close when I insert a mag. I've been having to close drop the mag slightly, close the mag, then engage the mag into the magwell, then cycling the bolt again to chamber a round. Haven't had time to figure out what the problem is yet (I have my suspicions), but it's happening with my factory mags as well...
I'm going to try to modify a butler creek mag-loader to work with the eagle mags (those last 5-6 rounds are a killer on the thumbs). I'll post any progress I have on that front.