Thanks for the quick reply. In each round, I used the following heater settings: For the temperature (in Celsius): For the heating duration for each temperature (in ms): So in each round, I'm actually strictly following the default heater profile HP-354: In the above example, we didn't run three rounds consecutively. By contrast, each round is run only once, then we restart the firmware, and get the result of the next round, etc. So the results of the three rounds are independent. I don't think the core issue is what the heating strategy is, the main issue is even if I use the same heating strategy and set the environment unchanged, each time I get very different results. Thanks.
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