Looks like a fun coil to build^^
My 1st attempt at R&D on the TTC<tm> (^Top-Shelf^ Tornado Coil)
2 twisted 28ga kanthal metered at 1.5ohms, I tried a single 28ga but it meters at over 3ohms. 28ga is the fattest wire I have at the moment.
Inner coil 6 wraps around a 3/32 bit and outer coil was 4 wraps around the tube inside pens that hold the ink, the fatter version.
Takes 10 years to heat up lol. I think using lower gauge wire will be better, in my experience braided wires have a tendency to heat up slowly above 1.2ohms. Maybe smaller diameter of both
coils as well. Coil looks cool in my KF clone especially that the airhole lines up with the inner coil. This coil will not move on to the wicking stage.