Just a quick update: I went for a short walk here down my driveway a few minutes ago, to see how the throw was on my D10 (I live a bit off the road; it's about a furlong* out to my mailbox).

On max output, this thing is just amazing. I'm probably biased by it being my first quality light, but WOW! I can light up the tops of trees a good 150-200 feet away well enough to make out squirrel nests. The beam is pretty tight, but not too tight, with good flood as well as spot. That 130 lumens is more intense than I'd imagined or realized.
The low level is, as I'd thought, indeed great for getting around without losing night vision. I've tended to keep it set at around 15-25% though, just for a little more light, but that's plenty to navigate with and still have a little reach without being blindingly bright. I love the versatility of this little light. It's no bigger than my SAK, and rides well in the same pocket.
My one complaint is a small one, and concerns ramping: when you ramp down from say halfway to minimum, then jump to maximum, then press and hold to ramp back down again, nothing happens as it just reverses the ramping direction as per usual. You have to press and hold for a second, release, then press and hold again to ramp back down. Same for the opposite. It would be nice if it intuitively recognized that you were already at the end of the line, and automatically ramped down from max, or up from minimum, regardless of which direction you last went.
...I probably made a mess of that explanation. And since the technology in this light is so incredible as it is, I'm not really 'complaining' as such. I love this thing too much...
*
If you know what that is in feet without looking it up, you get a free e-cookie of your choosing.