So I wanted to give a big thanks to Dayvape, and anyone else who told me about the EMDCC (ego mega dual coil cartomizer) it is so perfect! It suits all my vaping needs and is cost effective. I love how the flavor comes through so nicely and gives huge clouds of vapor. I went to a really cool store yesterday called The Vaporium, they let you sit down and test all their juices, and they carry everything except EMDCC's haha. Oh well at least I have Madvapes for that. So now my question is, are boge 510 cartomizers worth purchasing? Also do I just screw them on my ego batt? Or do I need a cone? Do I need a drip tip to put on it? I forgot to ask the owner yesterday the Vaporium, I was too busy testing flavors, which BTW my favorite is RY4 by Volcano:-D