AUTOMATIC LEVELERS - EZ Flip 4pt System

I spoke to the factory and also the installer and both say the system is designed not to twist the frame. The installer was more helpful than the sales person (go figure!) as he said that it is possible if one manually overrides the hydraulic...so tell me why one would do that I asked...He said if one corner was very low and needed to stroke another 2-3 inches which is when you need blocks....just like you would without auto levelers.

Anyway...common sense must prevail with all thinks in life....so back to my original question....Anyone have experience with this system or any other automatic levelers for a travel trailer?