Thanks for the input and ideas John. I look forward to reading your results using lump.
I've not yet been able to use the IQ to ramp my Acorn up to temp without significantly overshooting temp. I've been able to stabilize the Acorn temp manually at 275F+ and then connect the IQ with the inlet closed to 25% open (setting 1) and the IQ maintained the temp.
OK Joe Vertical Smoker, UDS, Komado Acorn, Weber Kettle Ranch, Weber Kettle, Stok Kettle