Goosehunter--I know there are tons of threads on this, but I got one from Rick a few weeks ago and nothing compares to it--it is a great piece of gear and the price is great for what you get for the money. His service is also excellent, BTW, he is a good guy to work with.
I was out over the w/e with mine and I really learned what they mean when talking about using the light's 'halo' instead of the direct beam. It really makes a difference with the focused power of that 170. I was lighting up owl eyes and all kinds of criters I was not seeing before with the other lights I'd been using.
I'm going to buy another 170 to use as a spotting light and just leave my first one on my rifle scope for shootin' time.
Anyway, enjoy your light!