Weird...
I took the bike for a test run yesterday to see how much coolant would boil out of the radiator - this is of course after I pressure tested the cooling system. It runs fine now, no overheating, and the coolant level is fine. [Rant1]
I'm not sure if 'Godbless' or 'Goddamn' is warranted at this point.
Anyway, thanks for all your advice guys! It really helps to have people who know about motorcycles to bounce some ideas off on.

