@ZozzV6,
Say, where did you get the premade a PD68 lighted tailcap board? I can find only the ones with 2 LEDs and built-in switch (from Kaidomain I think).
It’s certainly a pain to adjust the timing on the decay method. It’s probably just dumb luck that the components on a nanjg driver happen to give it a reasonably useful timing. With different values for any of its components it probably wouldn’t work. And then most of the BLF driver designs copied it, so the method continued working, mostly.
OTSM would definitely be more flexible and more accurate, given hardware capable of doing it.
I made myself. I think my english tricked you. I tried to say that I made the lighted board before the host arrive to just put them together when I get the host. 
Solved my VG10 problem today.
Looks like I got a new cree star inside 
Found some copper pieces about 0.5mm thick and stacked them up to fill missing space.
Soldered them together, put some thermal paste and it’s perfect now :+1:
Finally built my f13 triple.
Used the 22mm MTN fet+7135 with guppydrive
32mm noctigon with xpl-2 v5 4k
Ledil cute-3
Dual spring bypass with 18 aug at the tail.
And a killer copper spacer from k-ru.
Wow. Topped out at 3070 lumens with a 30q.
This is my first light to break the 3k barrier for lumens
Really impressed on how it handles the heat. The spacer was a nice snug fit. Painted it with silver and the light can last almost 4-5 min before it gets too hot for me.
X7 triple is next!
Not sure if it’s modding
I replace the faulty switch of utorch ut01, it works well now, great light for 14500 battery
I need to do this too.
What kind of switch did you use? Can you please post a link where to buy.
Tl3340
Bought it from taobao(digikey have , too, but more expensive)
Thanks, unfortunately I can’t order from taobao and the rest (mouser, digikey) have too high shipping costs for a sub 50 cent item.
What country do you live in? Maybe you can find a member that’s buying something from one of those places and have them buy one and ship it to you.
Have you tried looking on eBay?
Or AliExpress?
(edit) Hmm… no results there, sorry…
Yes, tried everything else I could think of (and a desperate search on google)
XPL HI V3-3C and Texas Avenger driver now inside
Narsil with full brightness when forward switch connects battery
a few days back I used my reverse lens adapter to make some nice makros
with a powerful flashlight light I got to F=18 16-35mm lens reversed on crop 1.6 DSLR
Woah, you guy have a bad luck, i guess
Basically, taobao has everything( i just type name and ta dah)
Made another Texas Avenger driver and reflo 3 Nichia leds from a Kaidomain triple to a Noctigon XP20 triple.
Before heating up. I like to see the small solder balls in the paste through microscope 
Fun to watch them melting together.
Anyone familiar with this driver? I took it out of the TrustFire ST-80 that is running SST-50 led. Goal is to change it to one mode only but I did not expected to bi so complicated.
Other part of the driver (not shown) has 2 mosfets K3638, sense resistors and a coil on it…
Trustfire makes their own drivers AFAIK, and they usually look complicated. I hope someone can help you (I can’t)
If it's got a sense resitor and a coil it sure sounds like a buck. Tow fets sounds like a synchronous buck, which is kind of cool if that's really the case. I'd be looking for an amp attached to the sense resistor (if it's not built into the buck controller) and then some circuit biasing the amp output. That would be the thing to hijack, the biasing circuit. But it might not work that way.
I made two PD68 lighted tailcap board for my future builds. One will be in the Jaxman E2L triple host. The other maybe in VG10 triple.