I was wondering what the best tank style to use ? Is rebuildable the way to go ?
I'm not sure that there is a "best tank" set up. I prefer carto tanks, they suit my lifestyle best. For me a good Pyrex carto tank (IBTanked or Phiniac) are no muss no fuss, and provide a great vape.
I also have a few pro tanks they work well and are easy to rebuild, so maintenance is very inexpensive.
RBA's can be an outstanding vape if you are patient enough to learn how to build them. I also have a few of them but they tend to leak if your PV isn't standing upright and I can never seem to remember that so for me they are just not practical so I stick mostly to my carto tanks.
Long story short what is best is whatever will keep you from buying a pack of smokes.