I have no idea where some people are buying their original Crown tanks. Like I have said on numerous occasions, I own 6 of them and I have never, ever had the problems some people are complaining about on multiple threads. Not only do I own 6 personally but my girl has 4 which brings the total to 10 Crown tanks that I have personal access and experience with. Never once has a coil not come out or have I had to use a pliers to get it out. In fact I find the machining on the tank to be top notch. Never once have I had one leak. Now if you want to complain about the qc on the coils, well that's a different story. Uwell dropped the ball big time there. I will say this, at Vape Northeast my girl unknowingly bought a clone and it was indeed a POS. I would venture to guess that most of the people having issues with the tank itself unknowingly bought clones.
A small 1 cent advice, (for those who are having leake) whenever you fill your crown PLEASE CLOSE THE JUICE CHANNEL ALSO ONCE FILLED AND CLOSE THE TOP CAP THEN PUT YOUR CROWN UPSIDE DOWN AND OPEN YOUR JUICE /FLAVOR CHANNEL (for 10 seconds, now every thing will be fine. I hope this might help you as this always help me. Thanks