i do pretty well with my protanks. they perform for me.
there's something to be said about something that is reliable and just works without worry of malfunction or reaction from juice (an issue with many plastic tanks).
if the protanks are to work for you, this will give you time to work the kinks out. if not, so be it.
what i offer you;
22mm ibtanked carto tanks to rest above your beloved provari.
get some laser punched cartos
get an extra tube for your tank(s) just in case of catastrophic emergency
get a slap yo mama
get a few 510 drip tips of your liking
make sure you prime your cartos by whatever method you choose and you should be good to go.
if you're interested, take a look through baditudes blogs... E-Cigarette Forum - Baditude - Blogs