Is your mod regulated or unregulated? What kind of wattage are you shooting for? MTL or DL draw? Commercial or DIY juice?
Start hear Steam-engine.org..... I like to build to a Heat flux in the 200s at a wattage approx 25% higher then planned running wattage. I try to keep my Heat capacity in the red range but real close to turning yellow. But i do a RESTRICTED lung or Loose MTL draw. I build to run at 15 watts or so. Bigger coils make the best flavor and the best clouds, they also require more power and airflow.
I would try some 26 and 28 SS wire.