It digs pretty good. Lots of power. The valve needs a rebuild. Some of the movements stick. Others cause the engine to bog. A couple work just fine. The stabilizers cause the relief valve to go off. Its a $279 kit to rebuild the control valve and the relief valve. I might have to spend the money on that and flush every hose too. At that point I might as well rebuild all the cylinders too. A project for a different summer.