That is one of the reasons I've never bought any SS. Mods that have a SS setting don't mention which formulation of SS the setting is for and seemingly each spool has its own TCR value. I'm not sure how people could possibly use TFR tables in the TC mods with SS because of this.
The coils is pretty close but not actually touching. (camera phone angle) As expected 0.3 ohms a coil, 0.15 ohms in parallel. It vapes good on the SL. Actually, really TO GOOD as this is the highest output RTA I own and I'm really not used to it (vaping 7mg salts and getting a buzz).
(I should take a picture of the Ni coils I pulled before putting the new ones on)
(care to count the windings on these?
I still have mods in service that only do NI or TI and have no TCR setting, these are Ni coils)
I like using the NiFE flat wire because of the surface area (coil/wick) and low mass. I have it in both 28AWG and 30AWG but find the 28AWG is easier to work with. Its very easy to wind coils and work with with single coil builds but back to back coils like I pictured is a real PITA to get both coils on without smashing the other coil in the process.
g.