This is kind of/sort of related. Just updated my Skilhunt H15 to the latest Narsil v1.12, bought via the discount bugsy36 was offering in his H15 group buy/review thread on the light. I modded this with a NW XM-L2, and a customized MTN17DDm v1.1 driver. I liked it before, but with the latest improvements, I gotta say myself -- Wow!
The improved Narsil in the H15 has:
- blinks now at max and min(moon) levels (blink is intentionally subtle)
- toggles the direction of ramping with every fast interval between rampings
- dbl-click no longer changes the last saved level, so you can dbl-click to max, click OFF, then click back ON to your last level
- plus I added a tail spring bypass, just to get it a bit more blindingly bright
I get a crazy 5.1A out of this little 14500 light (EFEST IMR of course), if a bumpy TIR optic on one XM-L2 LED can blind you, this just might be the first one, in NW tint no less.
goshdogit way back here, first asked about it doing a dbl-click and returning back to the previous set level. Well, I effectively implemented that, and I think it turned out as a remarkable upgrade in usability.
As ToyKeeper mentioned, the ramping is soooo smooth, plus the H15's beam through the bumpy TIR is soooo smooth. This H15, though it's a headlamp light technically, but with a nice tail magnet, decent thermal design for it's size, is now my favorite EDC 
.
Ok, enuf of this - back to our normally scheduled program...
Well little more: Thanks to goshdogit, ToyKeeper, and several others (un-named because I got no memory at the moment) who have been providing some great input/ideas and help!!