I'm using the Maverick ET732 thermometer for the first time in my XL BGE and have noticed that the reported barbeque grid temperature is consistently 30 degrees lower than that reported by the BGE's thermometer in the dome. Is this normal? I'm smoking two pork butts as I type and am wondering if I should be setting the XL BGE temp based on a grid or dome reading; when smoking at 250 a 30 degree difference seems too big to ignore... Any advice?
FYI, I performed the boiling water test on both the BGE thermometer, and both of the Maverick's probes. The BGE thermometer required a slight adjustment to read 212 in boiling water (I'm nominally at 500' elevation) and both of the Maverick probes registered 214.