In a message dated 3/4/04 11:55:06 AM, katzd54@YAHOO.COM writes:

<< . . .  wouldn't it always be prudent to subsequently crack that bleeder
screw to make sure all air was purged

although air bubbles do get buoyed up, if there is a local maximum in
height somewhere, air can get trapped, and require a standard bleeding
method to purge.
>>

Not prudent, but necessary to vent all the air from the system.  The 4 air
vents (rear heater core, radiator, 2 self installed) I use are opened in order
from the lowest to the highest until each flows a stream of coolant.

I think you might be confused about what I do to vent the air from the
system.  What I do is best described as the standard bleeding method with
enhancements.

George