New Game Mode/Alternative to GAC

The GAC gets boring when you're up against someone massively different from you with respect to GP.

It's boring going up against someone with 2x+ my GP with all of the GLs. it is also boring wasting someone that has much less GP than me like a gnat on the windshield.

What might be interesting is a new game mode where you play against someone with agreed to GP limits. Think of it like GAC, but with both parties agreeing to the maximum GP allowable. Then, at the outset/preview stage, all that would be disclosed to your opponent is what factions you both chose to utilize. You could also have mods unique to this game mode. Then, it becomes more of a legitimate chess match instead of GP weighted blowouts.