I love my drippers, the best flavor ever. I like some gennys too, my rsst is a fog machine with ss rope an Ekowool sleeve and a1 ribbon wire. However my 9$ Phoenix is the most reliable atty I have, plus the top cap is threaded so it doesn't come off in my pocket. What's the deal with just O rings to secure a top cap? What purpose other than sealing does it serve? It barely secures the top cap with just one o ring and instead of adding threading manufacturers just add a second?! With the innovation of afc rings I don't see the purpose of using o rings to keep the top cap on. The aga t4 top cap is threaded, hopefully companies will follow suit for those of us without desk jobs. If I've overlooked an rda with threading securing the top cap please let me know. I'd much rather use a dripper that won't fall apart in my pocket. I just don't get it, are people that lazy that they demand instant access to the deck without taking 2 seconds to unscrew it? You can have o rings at the bottom to seal and threading above it to keep it secured!! Just look at the Phoenix! I'm done ranting...time to vape up.