So, I've used crystal clear vaping before in the past for their boge cartos, couldn't beat their prices. Back then, I liked the idea of the clearos, but heard too many bad stories. So I was among the first few who started making tanks for our cartos. Once I got tired of inconsistent vaping and leaks, I decided that this was enough like what I hear about happening with clearos, so I tried them. Tried some ego-ws and stardusts. Stardusts were ok, but didn't produce vapor like I liked. Ego-w was great, but didn't like needle refilling. So now I'm back to carto tanks. I've heard great things about the j-tank, but wanted to get my cartos at the same place I got my tank, and sure enough, CCV had tanks. I got their 6.5 mil aluminum tank, hoping it would be good quality. Anybody else had a chance to try it? I'm going to use the single coil 3.0 cartos they sell since I have the ego-c twist.