Re: In which I sing the praises of the AZ2
The AZ2 is really cool, being floody with the throw option. However, for it's size and cost ($125) another few dollars and you could buy an LX2 which smaller, brighter, more efficient etc. The only thing that the AZ2 does better is flood a room with enough light to sneak through.
My LX2 is a great light, and to be honest, coupled with a Surefire diffuser, it does it all.... flood, throw, high, low, but for simple using when running, I don't really want to mess with removing a diffuser if I want to see a little further up the trail. The AZ2 body is a lot easier to grip with sweaty hands or while wearing gloves. The LX2 is a pretty slippery light, and you have to consistently apply pressure to the tail for it to stay lit (as opposed to the slippery Fury when you just need to click it on.)
I bought a white A2L around the same time as my LX2, and the LX2 killed it... the A2L does not throw very far at all, and my LX2 (with diffuser) could be the low/high flood light, or a focused thrower, so I sold my A2Z-WH years ago, but actually have an A2L-RD on the way (I always wanted one of those!)
So long story short, I think these lights are a steal for $125... the parts are also really fun to play around with. You can put the tail on a 6P or a 9P and get two levels, or you can put any E-series head on the AZ2. I had an old Scout Light head on mine for a little while... it was like an L2 without the high pitched whine!