Agreed, MtnView. I'm glad the blade/tractor relationship was mentioned. While I understand the principal and the reality, my nature is to overdesign and go big or better... just in case, or someday. I have no curbs, hidden obstacles, etc. that are culprits in destroying something like a rear blade. I used to push frozen piles of snow, that were blocks of ice, back an additional ten feet later in the season when I planned improperly, without problem or fail. That proves to me I need to stick with what I know. I passed on the King Kutter.