Very big help thank you!
In the top picture it looks like on the right side, the lower link attaches to the pin on either side of the of the bracket, yet it looks like the left pin connects to either the left, center or right side. Is this correct? I wonder why??? Where do you connect?
Also looks like the lower pin on the right side pivots, but the left side doesn't., and the top link is either fixed or slides in a groove. Is that to allow movement of the mower over the ground independent of the hitch?
If you don't mind, could you please get me the dimensions of the width of the opening on the lower right link? That would be my only other concern with the Pat's to make sure it fits in that slot. Everything else looks like it would work.

Also looks like the lower pins are Cat 1 on one side and Cat 2 on the other and that the top pin is Cat 1. Are my eyes good enough to see that's what they are?
And then, yours looks very clean, do you ever use it?

I think that's to many questions, but thank you