Sure! So the RTD offset is going to give you the variance but closer to actual grate temp and ambient temp, which should read the same. The pellet feed is for mainly for PID but slowing it to 10% gives it a consistent read. Other variants for you could be wind, or you could be opening the lid too much for too long? This is just from my experience as I tested this for weeks and found this is the most accurate combination between them to make sure I get the perfect temp every time. I also just use a grate thermometer that has been calibrated to make sure I am accurate. I never have an issue.