[EricH]

Originally Posted by Argon27

It was an assumption. Any input is greatly appreciated .

It might depend a lot on how fast you cycled the power, and whether the bridge was on an angle or not. If the bridge is at an angle, you need more power and less time on the down direction than the up direction.

Personally, I'd go with a pneumatic brake. If the bridge isn't balanced when the power cuts off, the power control brakes aren't going to work very well. OTOH, a properly plumbed pneumatic brake will stay exactly where it is supposed to be when the power to the solenoid is cut.