Whiteweazel21 I bought 24ga gr 1 wire from Gallium Source via Amazon.
I also had bought 28ga and 30g from UnkamenSupplies via Etsy.
For single coil TC, I prefer the 24ga.
Edit: I have not had any problems so far with contact coils. Like with Kanthal, I wind everything on a 1.5mm Artistic...