Thank you guys, lots of helpful info here.The shimano article that Jimc101 posted seems to apply to my situation.Since the brakes were performing at their best(yes properly bedded-in) and then like crap over night in dry conditions, it let me to believe that overheating might have occurred.Rainbow appearance and all.
But if your route has lots of side streets and driveways this likely isn't a great idea. Too often drivers stuff the nose of their cars and trucks out into the curb lane area before even stopping to look at what traffic is doing.
Yep, this is exactly it.
IŽll go ahead with sanding the pads, see if that helps.Hope I wonŽt have to get a new rotor.Will post results here later.