I run/have Kayfun 5 clone, Merlin, OBS Engine, Tobecco Super Tank RDA, Digiflavor Siren 22, and the Steam Crave Aromamizer Supreme. They IMO are all great tanks. The one I would go for if I where you is the Aromamizer Supreme Limited Edition. Fast Tech currently have it for 28.25 dollars. It comes with 4ml or 7mm options, a postless deck, a velocity style deck, and two different single coil conversion blocks for the velocity deck. For the price you get lots of options that will suite your style of vaping whether your MTL, DTL, Clouds Bro, flavor chaser, or anything in between, whatever floats your boat. Make sure if you do order that you select the right model as Steam Crave have a load of different tanks. It's on page two of the atomizer section and says Limited Edition, you can get it in different finishes (it comes in Russian Oligarch "Vulgarie Gold" should you be so inclined, I'm guessing you won't, the Gunmetal option looks nice) if you go onto the related items section. If you go for the Kayfun option check out Ments coil build, it will transform the tank, okeh, it wont make it shorter, but it will vape to it's true potential.