Well, i have bought a J tank from electronicstix.com with a Boge XL 2.0, and from momandpopvaporshop.com 2 mini subs with boge 2.0 standard size. For some reason i feel the J tank has a muted flavor. I am not sure if it is from the tank, the way the carto is punched or the XL size. Anyone has any idea what might be the problem? I want to buy another sub from momandpop with an XL however i am affraid to turn out like the one from electronicstix.