LD1
Epic Contributor
It would seem that a "dynamic" counterweight on the 3PH might be worth considering. By dynamic I'm thinking that the weight would pivot farther away from the tractor when the 3PH is lowered and then pivot back in place when the 3ph is raised.
I haven't spent much time thinking about how to do this but it would seem that a hydraulic top link could be part of the plan. The top link attachment point on the counterweight could possibly be positioned to facilitate the pivoting motion when raising the 3PH.
The obvious advantage of this arrangement over a "fixed" counterweight would be putting the weight farther back where it does more good. Also, the weight could be down low for better center of gravity even when the front loader is not being used.
Backhoe. About as dynamic as you can get