Ya, the Protank hassle, been there, done that. I was re-coiling those heads for a while, and had 24 of them I think, going through them pretty quick before I just chucked it all and went to an RSST and a mech. Months later I'm still loving that. I use a
sigelei 24 mech and yer basic RSST, 400 SS mesh, and 26 kanthal 5/4 wrap and it's perfect for me. Make my own
juice too, better than anything I've been able to get from the B&M's, and I'm a happy vaper.
I think you just have to go through the hardware journey until you hit what works best for you. It took me about six weeks to go from eGo
batteries and clearos to a mech and RBA, and I'm glad I didn't spend the money on everything in between. I might pop for a better mech at some point, I'd like to have a Roller and an AC9 topper, but for now I'm pretty happy with what I have.