[CriticalMass]

I got the right front and right rear done...eventually got clear fluid to come out and the grease on the threads did the trick to get them bled sufficiently. Unfortunately the nipples on the left front and left rear are all marred up and I can't get them loose with a wrench. So for now the system is half clean fluid, and hopefully no air got into the lines on the left side while I was bleeding the right side. The brake pedal is firm and feels normal so I think everything is ok.

I think I'll wait until an occasion when I need to take the calipers off anyway to fix the marred nipples...hopefully I don't have any brake problems that require bleeding between now and then.

The car has only been stored over the winter...as it has been for its 16 year life, so the master cylinder shouldn't be any cruddier than it always is at the beginning of the driving season.

Thanks for all the advice.