[Ryan O]

A lift could be kept up after ower is turned off if it is a pneumatic piston on a dual action solenoid. These solenoids have three positions: extend (fwd = 1, rev = 0), middle(fwd = 0, rev = 0), which doesn't change the current state, and reverse(fwd = 0, rev = 1). Turning off the bot should only put the fwd and rev to zero, leaving an extended lift extended and judgable.