My personal favorite on my EGO C twist is the Kanger T3. The vape is amazing, smooth draw, great vapor and flavor. Although I might say throat hit is on the weaker side. However, it should also be mentioned that I have had minor leaking, gurgling and sometimes a little juice in the mouth. It's such a shame too because when this thing is working (which is most of the time), it's hands down the best I've tried.
Also a fan of the Mini Vivi Nova.
Also a fan of the Mini Vivi Nova.