My Hustler Super Z has 493 hrs on it so I thought today would be a good time to change the Hydo fluid and filter. It was a joy to work on a machine that was engineered correctly. By that, I mean that the filter was easily accessable and so was the drainplug for the hydro reservoir. I didn't have to remove any belts or tension arms and the fluid didn't drip and run all over the frame as it has with other machines I've owned. Hustler is definitely doing things right!