I just got my T10 Al, and it's quite nice. Everything on the light works well, and I'm getting the hang of the switch. I did run into one issue, though it isn't with the light itself. The included allen wrench is slightly too large for the machine screws that hold the clip on. Unfortunately I don't have any small allen wrenches handy, so I made due with a torx t6 driver, which mostly worked.