There isn't much to get excited about unless yaesumofo digs the Arc hosts out of his garage. The price will have a lot of bearing on whether the chrome hosts can generate interest, too.
.... If there are people who want to build the lights up with modern emitters I think they would make very fine flashlights....It may sound strange but maybe they have been waiting for an amazing emitter. Is there one?
It takes more than cool hosts.
Yaesumofo
I would like to build out a set with triple Nichia 219B (or c) LEDs driven by a GDuP H.O. converter board. Primary and RCR battery support, 3 levels and a high of 1.2A
The Osram Oslon LEDs will work, but I haven't tried the XP-L with a triple optic.
I have pretty much given up on trying to get a single emitter in the Arc. A low profile reflector is hard to find, and cutting down a McR20-S looks odd through the window.