Denny,
You did a fine job with your cylinder control. I was planning on just plugging into one of the loader control circuits for my control, but that would limit loader use. I had thought of separate controls, but had not pursued it much.
In my mind, I was going to mount the cylinder where the current push rod is between the rear tire and frame. I planned to have some sort of slotted clevis design similar to the lift mechanism on my old 445 3-pt. Mounting yours off the loader mount is a different approach I had not considered.
I’ll contact you about additional details when I’m ready.
John