Hi, i have same problem like Smoking Dave
Immediately after firing, a TC mode turns off firing and no puffing is possible. I tried that on 4 different atomizers because I wanted to eliminate the error of an atomizer, a build or my hands. I tried simple and more complicated builds and of course everything was in SS316. The resistence was measured in a room temperature. An escribe software and mode communite with each other correctly. I tried different curves and even TCR too. Preheat Off. All 4 atomizers works without any problems on different devices (Drag / Primo Mini / Ephro Mod 101). I cleaned all atomizers and I put in all of them an easy single coil, SS316L - 0.3 average of a wire, the resistance of 0,7 ohms. I also cleaned a 510 centerpin in a mode and also in all atomizers. An no success. A Paranormal measures the resistance of 0,2 - 0,5 ohms which is also higher than in other devices. The TC mode doesn’t work at all or a only for a moment - I assume till the moment of the heating. If I switch the atomizer to a different device, it works without any problems.