so i had two roughstacks (the short and maxi) from madvapes that i sold so i could purchase a lavatube so i wouldnt have to swap batteries to change voltages anymore. well that was a huge mistake so after being fed up with how the lavatube cuts back the power I decided switching batteries wasnt't so bad after all and was far more predictable . i know alot of people like the lavatube but its definitely not for me . luckily i still have a collection of batteries . cant wait til i get my megalodon and ditch the lavatube