I did look at that and saw that the wiring becomes a little more complicated and the thermocouple used and some of the heating elements are temperamental.
Besides, controlling my temperature is not my problem, just the carry-over heat that remains in the coils after it shuts off. My coils are running a little hot in my opinion. I want to lower the heat in my coils, I think this can be done easy enough, just need to find the right part.