I'm having ss316L issues as well. So I make a coil and fire it, the DNA chip gives me a Resistance reading that is far off what steam engine says it should be. I have 250 Mod and a 75c mod that both tell me the same thing so i know it isnt the chip. The numbers will be off by 20% or more so i am wondering if my wire is not actually 316L. Anyone Have This Happen Before?