I have he manual HF lift and am very happy with it. I had to put wood blocks under the riight side wheel and stabilizers becausemy floor slants slightly to the right towards the drain in my garage floor. The lift is level. However when I start to raise the lift is always raises on the let side first and then the right side. The lift then goes up evenly. It is only on the first press on the pedal. Is anyone else experiencing this?