I'm really enjoying my walnut Shammer. My coils read .19 and I'm running 45W. The vapor comes relatively fast and very tasty. One standout of the Shammer is the open airflow. I'm able to regulate heat quite easily and without pulse firing.
I'm having the same issue as you. The button started going warm and now it doesn't work. I'm gonna open it up and see what I can do. Does anyone here know if KGWoodcrafts is still doing repair work?
I just got my Mi3 on Saturday. If I notice the power starting to peter out, I'll swap.
On a related note, since you mentioned button timing, I've noticed that I don't have to pulse the button at all. I wonder if I have a low-output version? I'm able to regulate the hit with my draw speed with...