I agree with higher temps in the 325-375 range and leaving glaze till end of cook. At those temps, a sugary glaze will burn pretty fast.
Modded Brinkmann Gourmet. Basic UDS. Rescued 22.5" OTS. SJS Mini-WSM. Stubbs. B&B Oak Lump.
Cannondale 2009 F8 (for burning off all the great BBQ)