I don't have any experience with axle hop but I understand your theory.

If you had bias control for the rear axle, you'd want to dial up max rear bias and work towards less bias vs. the other way around. So until you have too much rear brake, you don't really know that you have enough.

All theories generally point to you being able to run more bite in the rear due generally manufacturers setup more front bias for safety. Bluestreak, I would match all pads all the way around until you know that it doesn't work for you...you might be surprised that it solves your problem.