Currently I am using the Lavatube with their Tube tank system. I recieved a ViviNova from a friend and have a hard time getting it to work. I've read there have been problems with them working properly on the LT. So I am looking for a different setup. I liked the Smoktech R-tank, but have read some bad reviews. I use 3.0 ohm carts now and run them around 4.5~5 volts. Any help will be appreciated, thanks.