Yup--Only on the start-up:
I like to call it "Momentum" with my MES. In other words, after a long run from "Off" to a setting like 250°, it builds up a Momentum, and even though the Heating element shuts off the built up heat keeps coasting upward for awhile, maybe even 50° or 60°.
Then it will turn around and begin to drop in temp, and keep dropping right past the setting of 250°, and even though the heating element comes on, it takes it awhile for the downward momentum to stop & turn around again, maybe even 40°. And each time it turns around it overshoots a little less. That's why my method I described above works so good. It cuts down the long runs & the "Momentum" early in the process.
I also explain it right here:
Avoid Temp Swings in MES
Bear