Anyone else have any issues with picking up faulty coils from Smok? Brand new out of the package, ive had a few that will not work. Then the one shop looked at me like I was an idiot...telling me to clean my contacts. Yea, I wouldnt have come back in if I did and it worked. I gota few Clapton Quads that had issues, standard quads, and triples. Ive since went to an Atty....But i still like using a subtank.