OCC? Wicking done properly?

what u means first time or first tank ???
did u soap ur coil ??? before first puff ??
what juice u use ?

looks like your coil is gone...
Like what keypad mentioned, don't forget the primer pulls ...yesterday, I did took back one of the old coil and did the primer pulls... surprisingly, the coil after that was as good as a new one... but, every 10-15 puff, must do the primer pull
Thanks kepad for the great idea   

like any other gadget, newer = better till one finds their sweetspot or money runs out 
occ if you can afford the and lazy to recoil
rba if you bother building it

tried the ori sub-ohm and the rba, both with satisfying results 

u will notice the "thunder" sign on the battery is gone

mine when fully charge

too small, try 2.5mm above. normally i will run at 3mm at 5 wraps (0.6~ ohm) with around 5mm organic cotton. you wont feel dry hit and also always remember to "wet" the cotton before closing the top cap then test fire. ensure cotton is firmly attached to your wraps, if "longgar" that is one of reason for dry hit too