John, do you just push and hold the green micro switch button to lift, or do these lifts have a wired, controller, to lift the vehicle? I assume the lever control is simply a return valve to allow the vehicle to lower. Interesting. I would have thought the manufacturer, would have designed a setup like that, in the first place. It appears the elec./hydraulic unit is properly equipped with a pressure regulator. So, if the elec. control were to get stuck in the lift position, would the lift cylinders just go to the top, over pressure, and the bypass kick in and allow you to kill power at the breaker? What happens if a hyd. hose blows, the vehicle should catch on a safety? Does the factory pressure regulator have a tamper resistant seal on it? It should, and I would be surprised if it doesn't. Steve.