Thanks to all my peeps who responded.
Okay, so it sounds like I need the break fluid, but nobody has any other ideas about the high speed CE?
Coors, I get no funky smell, and the CAT has gone through the recall way back when.
My first thought was that is was an O2 sensor since it was happening more at higher altitudes, but it happens in the valley to, so there goes that idea. Oh well, I guess I'll just learn to love it!!