Reply to "Car Lift Security Bolts"

Quakes I have experenced out here so far usually roll or drop suddenly. With all the car weight on the lift I would doubt if the car or the lift would move with a roll quake. I was thinking more of the drop type of quakes, where it could put a sudden strain on the 4 post locks. But I do keep my cables somewhat taught in addition to the locks so I assume that may do some good as sort of a double locking system. Insurance companies you would think know most about this stuff, and my Hagardy says they never had issues with 4 post lifts. But then again, with a good size quake anything could happen. In one quake a few years back I saw the whole inside of my house twist for about a half minute during a quake and when it stopped all was ok, except for my nerves.