3-Point Hitch Which Top Link Hole to Use - an illustrative model

[LD1]

I doubt a person will see a measurable difference in the amount of weight the lower link arms will lift regardless of which position the upper link is pinned in. But to me it is a mute point anyway due to my implements all have drivelines so I want the implement as flat as possible thru the entire lift/lowering range.

If a mower or snowblower were setup like OP's last two examples, the driveline u-joints would have a shortened life span due to the tractor out put shaft and implement input shaft not being kept somewhat parallel to each other.

It makes a 10% difference, give or take. It is CERTAINLY noticeable.

But most implements paired for the machine size never comes close to the lift capacity of the machine regardless of hole selection. Which is why most people dont care.

But put a boom pole on, or a set of pallet forks on the machine, and it matters.

 

[RoyKing]

My new Kubota looks to be the opposite of my Ford 3000. So is yours hinged on the top or bottom. Using the hole closest to the hinge point makes least sensitive in draft mode.