Thinking I might dabble in a little DIY. Trust me, Adam and Heather have nothing to worry about here....
But I would like an rda for the ProVari that is inexpensive, easy to disassemble and geared more toward flavor than cloud chasing. I'm thinking 20 to 30 drops of various components per trial. Then rinse, fresh wicks and try another. This was I could try several different recipes without committing to large quantities per trial.
A Veritas comes to mind.....
Something I've recently tried, that is amazing for flavor, is the Geyser rda. Its a quad coils build, but the air flow is adjustable for dual or quad. We are currently trying them out for the B&M, and they may end up on the website as well. Check them out