zespectre said:
Initially I had some strong concerns . . . Eventually I discovered that the initial light I tested was kind of a dud . . .
Now the Gladius is my primary Camping/Backpacking light . . .
Pretty much the same here. I had a gray one, basically a dud, returned it for refund. I got a second after I read that the tailcaps had been fixed for intermittent activation. As luck would have it, I ordered a tad too early and by bad luck had one with a problem. But they did fix it with about a 1-day turnaround.
It works great now. I consider this to be my most reliable light both for durability and design features (thermal shutoff, low batt indicator, etc.).
I am not much of a "tactical" guy, so can't speak to that, but as zspectre says it is a heck of an outdoors light. It has so many features that make it very well suited to the backcountry. Lots of throw, waterproof and durable, runs just about forever on low (which is plenty to navigate the wilds with by if you have to), and the strobe is a great signal (tested at 4 miles, easily visible way beyond that). I wist I had one made of a yellow nitrolon type material like my SureFire G2.
As far as switch reliability goes, it is tough to trust something as loose as this thing is. They did a bunch of drop testing and allegedly came out shining. The only problem was that they did not drop test in lockout, and the cap can be broken if dropped hard on the button in lockout. However, if you do shatter the cap the light will still work -- whether by design or by accident it can withstand a cap failure and still give you light.
I normally use primaries, but also use Li-Ion 17670 cells (protected) that CPF user AW sells. They work great, but the low batt indicator blinks every 15 seconds (no bother to me). I don't think you want to use RCR123 cells. I have a vague recollection that the light is only safe to 7.0 volts.
Speaking of batteries I like the way the light runs them dead. You gradually lose bright levels over a few hours before the light finally won't turn on. No being left in a lurch with "sudden death" syndrome.
I like mine more all the time.
Scott