I can vouch for gearbest, if its says original or authentic its not a clone. Ordered quite a few things from them already. I got a bellus on the way, if that would have not been on the way, I would buy another one instantly. Let me see first how it works out with the bellus.
Now yesterday my
ipv d2 with obs crius fell out of my jacket pocket .... And the glass isn't even broken ! I must have been very lucky. I am 1m80 so it was at least a 1 meter drop. I have a black one, and some paint came off the top, but not much, its 3-4 tiny spots.
Then coming back on the unscrewing ... It was very tight the first time I had to unscrew it, i really did not want to apply to much force/pressure. But got it loose and hasn't been an issue since. Today I am going to recoil my obs, 1 week with a ti coil is enough for me, and perhaps my nife30 arrives today, who knows. I am going to try a wrap or 2 more, see what it gives. But still very happy with my purchase