Had a bit of a do'h moment. Was putting a new build in and decided to pulse the first of two coils before installing the second. Mod was still configured for a .1x build, and I was going for higher resistance on the newer build so that single coil was around .5 ohms. Forgot allll about the preheat settings. Turned wattage down. Hit fire button. Instaglow. Reduce wattage, hit button, instaglow. Keep reducing all the way to 1 watt, instaglow. Then I remembered. Preheat was over 100w for .5 seconds. Whoops.