just replaced my lavatube v1 with a sid. I took the rda off of the lavatube and put it on the sid and I cannot believe the difference. I have never tasted my juices quite like this before. You would think that the same rda on 2 different devices would perform the same when the voltage is set the same...but no the sid is blowing the lavatube out of the water. Best $35 I've spent in a long time.