Bwah! Well, a salty dog once told me about brine dimmers... <rimshot> He also made the case for board stretchers and turboencabulators. Lemme tell ya about the time we rigged a 1940s 4.5'dia. mirror ball... and had it "drop in" un-announced during rehearsal... Oh. Nevermind. Seriously though, if you told my first Steward about building structural set pieces with drywall screws his head would have probably actually exploded. I will allow that most technology advances have been for the better. Some knowledge of the old-school techniques improves awareness overall, and that is never a bad thing. And get off my lawn!