If you´re operating MAC 2000s in the head-down position, it´s a good idea to "park" them at the end of the day to keep the head from crashing into the base when power is cut. This is particularly true with the Wash because it is the most out-of-balance: with the Barndoors installed, cutting power can get pretty ugly.

For a more elegant power-down that is easier on the fixture, move the head to one of the tilt extremes by setting the tilt channel to either 0 or 255.