I want to try that flat wire but it sounded like a pita. I wonder if doing parallel wire coils would have a similar effect of more surface area wire but possibly easier to work with.
I don’t have any flat wire to play with. Yet but I may attempt some parallel when I’m feeling better. Have you tried them yet?
Yes, I'm a convert (once you gather up the spaghetti-like mess and re-spool)
The larger surface area is better flavour wise IMO, but doesn't have the slower ramp-up times that I find a parallel build has. I was using 26 gauge round SS316L for my parallel tests, so YMMV.
The flat coils also clean up/burn off a treat. I'm tempted to try some flat Kanthal, but I like TC so I'm on the fence with that. I'll definitely be looking out for some wider SS316L though. And a stock of elastic bands/spool tamers.

she's eating a mixture of pet milk and kitten casserole. Spent all night curled up on my shoulder
at least you have George & Gracie to keep the newbies in line