Ok, checked the test C01S head at 1A, and that did improve the tint but it did not go under the BBL yet: duv +0.022, CRI 96.9, R9 87.
So as I see it these leds are nice enough but they are still not “holy grail” leds.
Edit: cranking up the current (ignoring the heat building up in that small head 
), the tint lands on the BBL at 1.8A, but the CRI and R9 are slightly lower then.
I shaved a LH351D 5000K 90CRI as close as humanly possible and put it in my C01S:
High: 100.7 lm
CCT = 3961K (Duv 0.0000)
Color Rendering Index (Ra) = 93.0 [ R9 = 60.2 ]
Is getting a perfect on the BBL measurement like getting a hole in one in golf or something?
Since it was sacrificed for testing purposes, maybe you can get them to send you just a new driver so you can resurrect the light.
Send it to me for “testing with a new set of eyes” and I’ll see if I can concur.
I completely missed out on the BLF low-high version
There will be another batch low-high, and maybe Sofirn decides for low-high for all future batches (as often, the wording I received was not unambiguous)
Well...that's exactly what I was told...of course as unambigous as you have been told. :-D
I am eagerly waiting to see what kind of anodization the new batch will have. Low-high is the only kind I’ll buy. I remember seeing a poll either here or over on CPF where low-high was generally preferred over high-low by a landslide. I don’t really understand having a light like this start in high.
I ordered the Sofirn BLF C01S (low-high) driver, but ordered with another Sofirn flashlight. Unfortunately, the package arrived only with the other Sofirn flashlight, but was missing the BLF C01S. And when I reported to Sofirn AliExpress, they can only do a refund. I said I wanted the BLF C01S (low-high driver) but they said there’s none already… 
Hope I can get in the second batch…
I assume no confirmation of other metals or are you holding out a surprise for us?
“making a plan” sounds not final yet, but I have good hopes 
Really hoping this happens soon. Great light and interested in getting more no matter what finish.
No news lately.
I remember Sofirn said that when they run out of stock on aliexpress they will produce the BLF extra versions. They used to have about 1,000 in stock. Now its about 75. We must be very close!!
20 pcs available
US $9.99 | BLF C01S Mini LED Flashlight AAA Twisty High 95 CRI SST20 4000K LED keychain Flashlight Hat Light with Clip Low to High-Silver
https://s.click.aliexpress.com/e/Hxgzeyo
Shows sold out. That was fast…
Looks like those are gone
Wowww thats crazy!
The transaction history at the bottom doesn’t even show any were sold today. I guess it hasn’t updated yet.
Sooooo — when can we order the good stuff
shame on aliexpress… useless to buy for me there anymore… not worth it bad shipping options compared to banggood :… 