Any chance you are dragging a pad so that the rotor is heating up all the time you are driving and not just when you are braking?
with this when you stop you will also have a hot pad in contact with one part on the rotor when you stop.
just a thought
2011 e92 M3 Monte Carlo Blue ESS 535 - gone but not forgotten
2015 cayman GTS - new toy
2006 SLK 55 AMG sold