Interesting thread and great input, Grady. I do most all of my own work on my 911, but when I do send it to a shop it will probably be TRE because of Tyson+ Dave B. and Jeremy. They really do know the cars and are performance/race/weekend warrior oriented.
In So.Cal., there are many over-qualified shops to work on old 911s. In other places, it's the opposite.
It is also interesting how opinions are formed, like "I would never take my car to a dealer"(??) I'm sure that there was some reason for this one, but I can also think of dealers, (including one I worked at), who have forgotten more than your mechanic will ever know about these cars. (Maybe that's the problem).
I've never been involved w/ running a shop, but the observations about efficiency are right on. Cars sitting forever is a bad sign.