Hey Hoop, so happy to see you back here. I still have a single and a triple of yours waiting for just the right light. I’ve been thinking of a copper S2+ host lately just to make it pure.
Occasionally I get them out just to marvel at the craftsmanship and to remind myself that they need to be put to good use. Very much looking forward to see what you come up with next.
First off, both the manufacturer of the light and you were based Spokane WA. That was the 1st clue.
Second, you wrote that you were using a FET+1 driver based off of an Atiny controller. That was the 2nd clue, and the proof that the manufacturer was on BLF.
Third, I saw something interesting. You wrote about using silver-plated BeCu springs. I then searched for BeCu springs on BLF, which yielded mostly my thread results, and then I saw this post specifically mentioning Beryllium Copper springs: https://budgetlightforum.com/t/-/38876/126
I then connected the dots, and realized that it was actually you who started the Kickstarter
Nice light BTW. I would have loved it if you could use a boost driver though for NiMH compatibility. Although there are not available boost drivers in the BLF variety.