OK, your right. Thats what you wanted to hear right?
Firstly, i never said air in the system wont make it run hot, because a lot of air in the system could make it run hot. I said people over think bleeding the coolant system. Air rises, ever wonder why the radiator cap is at teh top of the system? At the radiator neck, theres an overflow, so when the system gets hot, it purges coolant, or in this case, air, out of the system and when it gets cold, it sucks coolant back into the system.
If you were to do a coolant flush, just disconnect lowest radiator hose, reconnect and refill. Then start the bike with cap off and fill till coolant level stays at neck, and all the air would get cycled out. BARFERS are NOTORIOUS for OVER THINKING!
K.I.S.S.