I like the Pat's system, after a bit of a frustrating learning curve.
Lessons learned using Pat's:
- Make sure the bolts that hold them in place on lift arms are the hardest grade you can find. They may have improved the ones they supply now, otherwise, toss theirs out. The ones they supplied with mine had no grade markings and bent within hours of use.
- Don't use their lynch pin washers that have the "right angle" bent into them. Yes, the washer on the implement's pins is held out of the way when you're connecting (nice), but the lynch pin can find its way to pop "through" under the right conditions when using implement. Not fun when 1/2 of your 7 foot mower has come unhooked when your on a 25% bank.
-Get the optional adjustable spacer bar, or make one, two, etc.. to hold lift arms at correct width when connecting to implements.
- If you're going to use them for a variety of attachments (of various widths) and not modify implements (like you would have to with a quick hitch), re-adjust the Pat's so that they stay parallel with the tractor, and a right angle to implement's pins (that is: If you bring the tractor's lift arms closer together for a narrower implement, the Pats are now pointed in towards each other. Seeing how Pat's and quick hitches have no ball bushings like a lift arm, being non-perpendicular to lift pins will put extra force on the weak adjustment bolts they may send you. )