Anyone running BFG All Terrain KO2's on their truck?

Well i made it in to my local Discount Tire last night.
Sure enough, all 4 tires have cupping on the innermost set of lugs. It's crazy, exactly every other lug on each tire is worn down. That's why when i'm going slow it sounds like tractor tires going down a road and then when i get up to speed it goes to that higher pitch.

So i need to confirm that there's nothing i can do to fix the cupping before i dump a grand or more on new rubbers :(