I have a simple question about the rebuildables. Rebuilding part aside, are they ok for fill and go like a clearo or carto? I've been considering a tank system like a kayfun lite plus but can I just fill and go once it's built? Is leaking an issue if it's not kept standing? Can I just put my mod in my pocket and be reasonably comfortable knowing I'm not going to end up with a pocket full of juice? Thanks in advance