I'd like to say a few words about Happy Vapors ego booster's warranty. I recently destroyed my booster by pulling a storm chaser
tank shell off while attached to the booster. The
tank shell was tight and when it came off the guts of the booster came out with it. I contacted Jack at Happy Vapors and he took care of the problem, sent me a new booster. I hadn't registered the booster yet so he referred me to Sheila at the manufacturer of these boosters and we got mine registered and then sent me the new one. The customer service here is awesome and that is very important in my book.
So a word of caution...Don't pull anything off that is attached to the booster, not even a tight drip tip. Remove your tank or whatever it is your pulling on and put it on an ego without a booster. In the case of a drip tip, just hole tightly to the carto before pulling. If the electronics were glued to the shell of the booster this problem wouldn't occur but it would make it impossible for them to make any repairs so be careful. I love my booster and hated being without it while waiting for my replacement which took about a week because of the registration issue. So be sure to register your booster when you get it.