It's complicated...
My rotary cutter is a Woods BB600XW Cat2. The QH-20 is obviously a Cat2, which is why I thought it would work. BUT, the top link on the Woods 600 rotary cutter is actually a Cat1 top link. So it won't work with the quick hitch...
The Kubota ballast box is Cat2 but is too narrow to work with the hitch. :ashamed:
I don't know for sure, but the quick hitch probably works with MOST other implements --- just not the ones I have?
I guess they would have to be modified to work with it.