Rudy:

Generally speaking, there's nothing wrong with a wooden prop. Other than breakage resistance they are much preferable to the flexible plastic props, and they are less expensive than the rigid composite props.

Aerodynamically, the modern composite props are better, but they are more expensive and usually heavier. If you are in the habit of breaking props the inexpensive wooden ones can quickly become more expensive than composites.

The wooden props are available in many more pitch and diameter specifications than composites. It's pretty cheap to set your CNC machine to run off a small number of wood props, the mold for casting composites is expensive.

My preference? If I can get the prop I want from MAS or Zinger in a composite I'll use it. But on a twin if I have to use wood on one engine the other engine will have wood also.

In your case, if you regularly cut grass this can damage the tips of a wooden prop, one of its few bad points, and composite will be better for long life.

But whatever you put on the rear engine, the front really should be the same except for the reversed pitch.

Bill.