Could very well be, either way the heat treat was:
[1]not done at all
[2]not done properly for the steel used
[3]the steel was a wildcard from the supplier.
In case #3 there would be no way to heat treat it properly because the steel is not what it is supposed to be.
No matter which it was, a crappy clip was the result for some of the CO1’s.
As far as heat treating a second time or even a third. It can be done with no problem at all if the steel has not been super heated past it’s limit on the first heat treat & ‘burned’ the Carbon out of it. So… if you ’miss it’ on the first go around, try again.
Tempering after heat treat is very important…. otherwise you just have a hard, brittle piece of steel. :person_facepalming:
Heat treating is a science. There are standard formulas for known steels that give optimum results if followed.
If you’ve never heard of Paul Bos (Buck Knives) & are interested in heat treating, do some reading… he was & is a master at it.
Just received my first 2 of 4 and want to commend all parties for the hard work.
These would have remained an idea but for the passion of BLF leaders and a company like Sofirn who listens to and (more or less) delivers exactly what we want.
I’m really impressed with the quality. I’ll have to snag a couple more of these little gems for friends. I think mine will pull double duty as an EDC and a bug-out bag/emergency light.
You are actually the first to come up with that. Twisties in titanium tend to suffer from gritty threads, but I have a ITP i3 in titanium that works very well. Does Sofirn do titanium editions at all? What would be nice is if the “pro” edition is there, to have that one in titanium
How drastic is the difference? I think the E01 with the Nichia GS was a good balance with a nod towards throw making it useful for maneuvering. Is the C01 THAT much floodier? Hoping it will make a good emergency neck light or backup light for camping.
You should probably keep an eye on Clemence’s Jetbeam modded with an Optisolis/E21A if you want an ultra high CRI AAA light with some output/throw. Of course it will be much more expensive than the C01.
C01 has no hotspot. To me, it’s like a zoomie on flood. If you want to use it as a tent light; it’s fine. But if you want to walk around or look for things; I find it harder than using the E01. Using indoor to walk around is fine as well because of reflections from walls.
I was thinking exactly what you’re thinking about neck light or camping light last night when comparing the 2 lights. I would put the E01 around my neck, not the C01.
Very different. The Yujis at 25mA are great for navigating around the house at night, in my opinion. It’s bright enough to use at close ranges without dark adapted eyes, but not so bright as to be obnoxious if you have dark adapted eyes, especially the 3200K version. The floody beam extends into your peripheral vision, so you can have good awareness of what’s around you. That means necessarily that it doesn’t throw like the E01.
Outdoors, I think it’s reasonable for walking with dark adapted eyes, but you won’t be seeing very many paces ahead with it. It should be great around the campsite, but if you were using it as a backup on the trail, you’d want to walk slowly.
Your mileage may vary, of course. There is a lot of variation in what light level is comfortable to different people.