I'm leaning towards getting the XCube II mod. Currently, I have a istick 30w where I run a subtank mini. Don't necessarily want to use the subtank mini on the XCube II, so what other tanks would you guys suggest? I typically run at .5 right now, but I'm not opposed to going down to nickel coils for TC mode at .15 or .2 (and so on). So, I'm just trying to get an idea of what tank I should run the XCube II on?(besides the TFV4). Just want some options. Thanks for any input given, it's greatly appreciated! 