Purchased through AdvansiA, I am convinced they will all flee. The junctions between Drip Tips & tanks not own 1 single joint and are very coarsely machined; suddenly, they are "floating". I opened 20 D-tips to control my statements. In addition this unique seal has been systematically pinched assembly and pinch it keeps its shape. It is very difficult to take the thread of these Drip-Tips on tanks (yet useful with each filling). This thread is machined so bad that it is rare that the base of D-Tip door on the joint of the resistive wire ... If it does not leak from one side, it will flee to the other ... Very disappointed with my purchase. I have not tested the 20 Clearomizers screwing my batteries, but I expect to have to throw before filling. The Clearomizers I received with my 4 Vapos were not branded yet the build quality is not even comparable. Do I speak too short locks 1 out of 4 times, no, you can imagine ... In short, I advise you to go your way ... I have still put two on, if I have the opportunity, I would increment or moderate that opinion.
