I only use single coils for flavor testing when making new liquids.
Otherwise I am always using dual or quad coil setups, as I think they provide the best flavor/vapor.
The stove top style coil is possible, however it is nearly impossible to do with high gauge wire. The only successful one I have ever built was with 24 awg.
As for how to do it...
I used an old sewing thread spool, I bored out the hole in the center post of the spool and sawed off one of the flat ends.
I then inserted one end of the wire into the hole of the center post, securing it firmly by kinking the wire.
Then proceeded to wrap the wire against the remaining flat edge of the spool, very carefully keeping it flat, and using pilers to hold it in place. A very tight wrap is required for this to work and you need to do at least one more wrap than you actually want in the end product.
Once the coil was wrapped, I clipped off the securing lead where it enters the center post (leaving a small length of wire coming out perpendicular to the coil) and slid the coil off the spool.
Now, holding the entire coil firmly with flat needlenose pliers, I pulled on the outer lead, thus tightening up the whole coil. When you let it go, it should spring out, leaving a very small, even gap between the wires.
I am sure that there is an easier way to do this, but to be perfectly honest I didnt find it to be a very good vape, and the effort involved was simply not worth it.
For flavor builds I always find myself coming back to parallel tiger coils, 5 wraps on a 1/8th inch screwdriver with twisted 0.9 ribbon and 24 awg kanthal.
For cloud builds I havent found anything to be much better than parallel 22 awg, 4 wraps on a 1/8th inch screwdriver.
