Well, I just spent a week at work using my new A2 and U2. Monday and Tuesday I used the A2 since my U2 was still in the mail. Tuesday nite I opened up the U2 and right way there was something I liked about over the A2. I love the switch on the U2. a simple clik and it's on. You have to turn the A2 three hundred times before it will stay on. I also like that you only have to give the cap the slightest twist and the cap is locked so the light wont come on in your holster. The A2 it seems like you have to turn it for an hour to get it to lock. At first I liked the A2 for the led/incan setup but once I started to use the U2 with it's six level setting I fell in love. I'm a truck driver and I work nights and I found that the U2 was an alll around better light for my needs. I'm not knocking the A2 by any means I just think the U2 is better. My U2 is now my go to light. I'll keep the A2 for the house.
Lerch.
Lerch.