Hi ronfisherman. That was my thought also. Not much available info. I'll have to look to see just how long the system has been available.
It seems to be a good system. I have talked to a rep at the factory. Which of course speaks highly of the system. It seems to have the different size motors to lift just about any weight coach. My son in law, said that where he works, a quarry, they have electric jacks that can lift 20 tons, and he said they never have any problems with them. Gotta do more research.
Life's a trip, ENJOY the ride.
Safe Travels
Bill