Well, I'm officially a part of the forum. Up until now I had no flashlight, other than some many years old 2xC incans lying around. Just finished building a 16340 clicky, made it as small as I could, whole thing is under 3.25" long, and 0.9" diameter. I first joined up for the LED section and machining section since I do a lot of home LED lighting with my business. Before I came here I'd never run an LED from batteries.. but now I'm hooked. I now have Li-Ions scattered all around me, I've built my own Li-Ion charger, and I've already started construction on my CREE MC-E flashlight body, and a 9xCREE WH R2 torch, both with ridiculously efficient custom drivers, (94-98%). The driver for the light I have already done shown here is just a 3x7135 dual mode driver. I bought a couple other single cell drivers to try, but they were horrible. The 7135 board is OK, but I'll be building a proper buck-boost driver for this guy soon.
I put in an N2 flux, 8B tint, 2720-3050K, warm white CREE. The colour of the beam is very nice, and things appear extremely vibrant within it. I only have my old junker camera right now without shutter manual shutter control, so I was unable to take a good beamshot, but I'll get one tomorrow. Gonna build another one of these too, and throw in a WH R2. Went for the seemless look with the body, should be pretty waterproof I think. Let me know what you think!