BTW, I discovered recently that Vinh sells a light similar to the BLF A6… and it reminded me just how fantastic of a deal this light is! Compared to the Vinh model, the BLF A6 has an upgraded driver, additional firmware features, and it costs like a fifth as much for a comparable configuration.
Vinh does great work, but in this case I think we’ve made something even nicer! 
(and soon there will be a BLF X6v2/K6 combo with the same benefits plus more, in Krono’s new group buy)
(edit: the above was originally supposed to be posted here but I accidentally put it in the other thread… oops)