I ran a bunch of sets of KO2's (all Load E) and never got great tread wear. For me when they would get 2/3 worn they were prone to hydroplaning. So, I would get a new set (back when they were $600-800. But when they got expensive I quit and moved on.

My Mickey Thompson Baja Legend EXPs have worn about as good as anything (other than a michelin X type radial). They are the old Dick Cepek EXP and they have better sidewall stability and wear than the Falken wildpeak on the 10 ply side.

So, I know the question was KO3 related but for the price and my KO2s experience have already made me a hard pass.