I have a DZ coil jig, but i'm a bit low on black pudding, so email me some Dibby please!
It's an interesting looking coil maker, but too expensive.
Unsure - i wrap 2 or 3mm coils and the reason is because i can see them then! (ok ok, it's because if you use low gauge fat wire, you either need more wraps or a bigger inner diameter for your coils to hit a target resistance)
Kay - RBA supplies sell Readywick, i think you are confusing them with RTD vapor, which is the Reo goto for AW batteries.
T