I'm really surprised not to see people using Imeo's (I believe Imeo originally came up with the idea, SO sorry if i'm wrong!) idea of using unoxidized mesh and no resistance wire, with the mesh itself being the coil. LongHaul and Bishopeals seemed to have good luck with the methods.
Can't see that working at all in a genny. But I will withhold judgement, how about starting a thread on this technique?