I picked up an x1 rba from fast tech I figured it would be good to get some practice rebuilding. I picked up 28, 30, and 32ga kanthal as well as 2mm and 1.5mm silica. Well I built my first coil with 4 strands of silica and a 4/3 wrap of 28ga came out to 1.2 ohm. The tank part itself is getting warm is this okay? Everything else is working great getting a nice vape so far. I have a sentinel clone with a Samsung inr18650 20r