Just a quick observation of a potential issue with this rta, I will start by saying that I love this rta but feel I must share this issue. Earlier today I noticed a rattle from the rda so I stripped it down to find out why. Inside the rda is a 'honeycomb' cover over both the airflow openings which I had always thought was an integral part of the deck but actually are only press fitted over the airflows and can work themselves free. A piece of metal rattling around the deck is never good, luckily I was using it on a regulated mod so if it had of shorted the positive and negative posts it would have just not fired, not the same outcome had the mod not been regulated. Just a thing to watch out for.