Just built a new single coil with 24ga kanthal, perfectly spaced 8 wraps and 2mm ID at 0.53ohms. Thick cotton wick, a real tugger, with ends trimmed right to the groove at the top of the channels. Top filled with 70VG juice, and here's a trick: AFC closed for fill-up, then two 1-second pulses on the mod after screwing down the top, before opening the AFC halfway for the first puff, a sweet one with no gurgle. Then open wide for a killer ride at 25W. Zero leakage in sight. Loving this thing in single coil mode!
My second Bellus is still running dual Ti coils for TC, and I'm really enjoying that too. The sweet spot for me at 0.17ohms is 32W and 420F. Neither set-up runs really hot, and that's the way I like it. I'm new to this level of things, after all. But the flavor and vapor are crazy good. Like
@FiReSTaRT, I half-close the AFC on the dual-coil to get a little thickness. Weeeee!
Boy, am I glad I started making e-juice for myself. I'd be freaking out otherwise, even with the budget vendors I used to prefer.