You are correct, I’m no expert when it comes to pulse width or duration, only reason i brought it up is cause you keep talking about it like it’s the most important aspect.
I have no idea why you think that low setting at a fast duration doesn’t impact the hair, if this was true then we wouldn’t be seeing any shedding right?
This method works because you heat up a whole area to achieve enough heat to disable the follicle there.
Anyway, i think that you need to see how it works, it is clearly nothing like you have seen before.