There are supposedly two tread patterns. I also saw an R/T version.
Is there any rhyme or reason to which pattern one might get? I've seen situations where retail pattern was different than OEM (the KO3 may be this way) or it might be certain sizes.
If I was in the tire business I would make the 20" bro dozer sizes less aggressive, knowing they'll never leave pavement they have no need to be obnoxiously loud in order to eject mud. Closing up the voids ought to make it better at pulling the wakeboard boat out of the lake anyway.