Summery: FUN ON A BUN. Should have brought a cleaning kit. More photos of the unit from a previous thread: http://glocktalk.com/forums/showthread.php?t=1358047 Lubed "wet." Avoided striker channel, no need to attract goop there. First 200 hundred rounds: Unit fresh out of box, lubed as above. CCI Mini Mags. 0 Fail to Feed. 4 Fail to Fire. (See Below)* 0 Fail to Extract. *Strikes were so-so. Hard to call them good. But not bad. Gonna blame the gun for those. They fired a second time through. Note: Unit not cleaned before switching to Federal Auto Match. Next 100 rounds: Federal Auto Match Many Fail to feed. 3 to Fire. Many Fail to extract. Upon examination I noticed right away what the issue was. The breech face and extractor were coated in brass and powder gunk. I had almost forgotten how dirty .22 pistols get. After cleaning out the gunk under the extractor all of the extraction issues cleared up immediately. The failure to feeds however were harder to diagnose. The rounds were seated properly in the mag. However the rounds would not even come out of the mag by thumb pressure. The cause of this was a layer of wax built up around the feed lips. The thick wax deposits clung to the automatch bullets. When the wax build up was removed the problem went away. I think this wax build up could have been mitigated or avoided by using the thumb button on the side of the mag to slip rounds in, rather than forcing them against the spring pressure. Further testing required to validate that theory. Brass "smiles" Due to 6 oclock cut in the chamber to increase feed reliability, your brass will be bulged in that area. Tac Sol confirmed this via phone. But hey, it's not like you can reload it anyway Tac Sol also said that the federal automatch has been giving them problems of late. Ill talk to them more about this tomorrow hopefully. Oh, BTW, they have great CS. They called back right away after I left a voice mail. Very willing to talk. One of the engineers left a voice mail for me. Switching between the 9mm upper and .22 upper was easy. I noticed an improvement in my shooting with the 9mm as well. More aware of trigger control after using the .22 upper. Tac Sol recommends a 500 round break in from what I understand. So, not quite there yet. Expect an update at around 1000 rounds in the next 2 weeks. No range photos, forgot the camera Next time.