I have been lurking on these forums for some time and trying to decide if I wanted to go this route to attempt to quit my 25 year habit of chewing. After a lot of reading and not really being able to decide what to start with I just went to the local B&M store and bought a lavatube 2.5 starter kit. So far I'm happy with my choice but was wondering if I should buy a spare tank from them to start out with or go buy a different type of tank as a backup. A friend at work that I only see once a week told me I would be happy with the lavatube but would want a different tank and I'm not even sure where to start looking for other tanks. I have cut back a great amount on my chewing in just a few days and don't want to have a relapse due to my coil burning out or tank cracking. Any advice is greatly appreciated.