Has any one used the heat cycling method. I have been running nitro for 10 years and have always used the factory directions. I read all the top motor guys start by running the motor at a slightly rich setting on the ground for 2-3 minutes then shutting it down with the piston at BDC and letting it cool, start it up and run it again for 2-3 minutes, keep doing this until you've run 15 min on the motor. Then jump it up to 3-4 min until you have 20-25 min. on the motor and dont be afraid to get the motor over 200 degrees before letting it cool because the motor is going to heat cycle. After 20-25 min tune to race.