I have been looking at the 3ml in both SS and aluminum. I was wondering if they leak? are they easy to take apart and fill ? I have been using Stormy tanks and I like them but would like to invest in a regular carto tank instead of a ce2 tank. I really want a metal capped tank and not a delrin or grommet tank(this is what I have and it'd ok but would like something diff). I chose this tank because I can get tank tints for it, metal caps, and I like the size. Just looking for some input from anyone that uses vaporescence tanks. Thanks