The reason the .750 wheel is the "industry standard" is because that is the biggest wheel you can fit in an .842 body. In other words, because Chevrolet architecture is garbage, we all get garbage. That's why the .750 wheel is used.
A narrower wheel on the lobe will INCREASE the unit loading and cause MORE friction.
Your last statement is just dead wrong. It's not a balancing act of anything.
You run the biggest body with the biggest diameter wheel you can fit in there.
