Hmmm I like this idea. If I could just run the fan whenever I wanted, I could keep it nice and cool.....(It seems to do it's job when it decides to run)My solution:
I installed a switch on the cooling fan that will ground and start it when I wanted. That way I could keep the fan on even after the the water temp has cooled. I can also see a grade, know it will get hot, and turn the fan on before the sensors do and keep everything in the 200-210 region regardless of the grade or hills. Works well for me.
I also should see if my edge can give me coolant temp. I don't recall that as an option. I am only watching oil and tranny temp.