Hi all, I have been researching different tanks for a few days now. It has gotten really confusing during this. I have a YJ LavaTube which I believe is 510 threads. I have used clearo type tanks, vivi nova tanks (all which are wicked). I am looking for a tank that I can use any juice in. I know that comes down to glass or metal, I perfer glass. Do I look for something with caps and orings, or grommets? Which is better. How are carts versus wicking. Are there glass tanks with rebuildable heads that use wicking? How long do the carts last?