Everyone has their own 'I won't use/buy from anywhere other than {place personal preference here}'
#1: What are you using in your 100W + box mod (18650) single or double
#2: What are you using in your mechanical mod (18650)
The fact remains we take our chances each time we buy a battery. They are all 'real' if you can touch them. Safe? Never said anything about it, nor should anyone be claiming one is more safe than the next.
That 40Amp claim stamped on a few known wraps as far as I am educated, is a pure falsehood, and utterly impossible due to battery technology as of this date.
The trick seems to be, finding the 'best' battery for your style. Then repeating that process when ordering a second time. Oh yes, and not getting a hole gouged through the base of your account, by the supplier claiming they have 'real', real good, 'original', 'here look, see this tiny divot, edge, crease or slight graphical shape difference, that proves it's real kind of malarky, or 'I have a direct line from/to the manufacturer'.
Geezus people as soon as we choose to stop dicking one another around over a few credits in the account, we might make headway.
If your using anything with the word 'fire' in it, Stoppit, immediately. Yes, we all used them. The keyword here, is 'used'. As in past tense, yesteryear, a long time ago, not anymore because we are a tad bit more educated via experience, so no thanks. So please stoppit.