ok. I'm going with a mini nova for my top coil and kanger mt3 for my bottom coil. Redux coils are harder to search out because they might be ce4/ce4+/ce5/stardust/yadayada and probably more knockoffs exist. As an ecotard, i was hesitant to get an mt3; it seemed like bs marketing of a t3 with just a fancy sleve (more materials, machinery, energy, etc) but read and realize it's more durable in the pocket or if ever dropped (not that i drop things really) and supports the tank for potentialyl destructive flavors like cinnamons etc. On paper, mt3 seems like the best cheap cleao with bottom feed for no tipping/shaking and should last a very long time, too bad the coil part is the base though hence being more expensive than simple coils. take care.