I've got a Reo Grand, bottle and battery go forever, hey( noncognitivist ), just a thought here, the bottom feeders are esentially an easy way of dripping, so you use a 510 or 306 or an adapter with a 901 for instance, or even the new 3 hole betterlife drip atty. Anyways point being these are all available in LR ( that's what's recommended ). I use a LR 510 at present and like I said in a previous post....It Vapes Like a MAD ..... !! Why on earth would you pair it up with a VV ? waste of $$ in my mind. Ya can't put a clearo on it for instance. I just think with a " Bottom Feeder
mod " a vv is uneccessary, less you're gettin a Power Baby or Gripper or a box mod along those lines, one that takes some kind of
tank.