I am still figuring this out for myself, having tried FW and tfa peanut butters and not totally loving either one. I have yet to experiment with mixing those two. Chances are they are a lot alike, is my guess.
One thing I've read over and over is that people seem to like a combination of CAP and TFA Peanut butter flavors. I think it's about half-n-half but it'd be worth doing some searching here on VU, ECF and reddit diy_ejuice to see what people have to say about what they've tried.
I've also heard that TFA PB (and maybe all peanut butter flavors?) contain several different pyrazines, for which reason, it is important to shake a lot. No idea on the science of this--just passing it along. Can't hurt, I figure
