I have two builds I use with 26g kanthal. I use these for getting rid of juices with higher than 6mg of nicotine but the flavor is usually pretty good. 5 wraps around a 3mm about 1/2mm spaces between the wraps. Should land right around .8ohms. The other is basically the same thing, but 6 wraps around a 2.4mm with no spaces. Nice and simple and works great.