I really enjoyed the tutorial above (I will probably do something like this when I get my Russian 91%), but there was one thing that bugged me. The coil in the illustration is 0.9 to 1.0Ω, yet the author "would vape this at between 8 and 9 watts". That means that the voltage would have to be between 2.69 and 3.00 - dangerously low for an IMR battery in a mechanical mod and typically too low for a variable voltage mod (the floor on a Provari is 2.9v). If you want to vape between 8 and 9 watts, you shouldn't aim for a low-ohm coil.