Riding different types of Express lifts

Hello, and in this video I take a look at 4 different types of Express lift.
The first in this video is a VAC controlled Express lifts installed in 1983, which uses Express C machines.
The second is a 2 speed Express lift, which also uses the Express C machine.
The third is a single speed Express, which used the Express B machine.
The final lift is also a single speed that uses an Express A machine.