I know that the GT Ccell coils are SS316. But there is a considerable amount of confusion about the rest of the GT series coils. Some say these coils, GT2 - GT8, use Kanthal for the actual coil material. I have also heard that these same coils use SS316 for their coil wire. I've been on the website and have checked my GT coils and packs with a magnifying glass and still cannot ascertain what the coils are made of. Could we get a definitive answer from Vaporesso about the coil material status of the cores?(GT2 - GT8 and mesh coils)