Validity may depend more on what she likes in terms of DRAW in addition to vapor + flavor.
For me, the draw HAS to be right - then I'll tweak for the other 2...
I run a Petri V2 and a Goon 22 on a Coppervape. I have a Wraith, but don't use it that much.
I like a "restricted" lung hit - so on my goon, I've only got 1 hole each side, or maybe 1 1/2 (thought that's really tricky on a Goon).
On the Petri as well - just 1/3 of the holes open...
I prefer a slightly warm vape, and "instant" response - minimal heat up and cool down.
So for that, and 1 battery mechs, I end up rummomg
a simple wire dual coil.
I probably WOULD do SS, but for some bizarre reason SS doesn't agree with me - so it's Kanthal or Ni80.
I end up using 27 gauge, and 2.5 or 3.0 mm coils frequently, targeting 0.45 ohms or so.
Thicker wire and I run into too few wraps to get juicy... or too low resistance for my airflow preference and 1-battery mech.
Placement is usually a bit low, to facilitate wicking. Wicking is just enough to lie on the deck, not stuff empty space. Airholes are aimed at the coils.
I get DECENT Vapor, great flavor, and the vape I like.
It's not MASSIVE clouds, but it's a "dense" satisfying vapor.
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