Thanks for all the responses.
Yes, there is a studio shot of the 751 on a 52" Wright Stander in the "image gallery" on the front mount aerator page
of our website. I ran the 751 around with the Stander when we had it here.
Correct on the down pressure info. Those cast iron heads weigh 12 lbs but it's more about the geometry of the tines and the forward driving force of the mower. As the first tine hooks into the ground, the next tine is being pulled or driven down into the ground. That's why it's good to aerate at a pretty good pace to keep that momentum going.
So yes, you'd want a mower with enough weight and traction to turn and maneuver with the aerator out front.