I also use heat cycle but I never set it on the track until I have ran at least 5 tanks give or take on the box but, I wrap the head & use a heat gun varying the throttle @ a very rich setting to help blow the crap out never letting temps get below boiling point, temps are very important!
The reason I don't throw it down and let her rip is just that temps, temps, temps! You can't really have control on temp that way.I consider myself very experienced on this subject & have only learned from my mistakes.But, everyone has their own way and I have always left the decision to the owner of the mill with a smile on my face.
It's not my 300.00 mill