RPunk is correct. It seems I am talking about the DCT and U-DCT's 1 out of 5 threads in these "My Kanger tastes like ...... spit" threads.
The new improved Smoktechs with the locking rings are amazing. The 6 ml from myfreedomsmokes is my new favorite. I will always drip but, it is so nice to chill and not worry about leaks, plastic taste, burnt wicks, failing
coils etc.. The prepunched carts are cheap and in 2-3 weeks when the cart goes south suck any left over
juice up with a syringe and prime the next carto with it and stuff it in the
tank.
Yup, I still have the almighty Vivi's around but I am burnt on recoiling and rewicking for now.