My complaint is not with the blade. It is a good blade for the money, but the Teflon ( DuPont or not ) hinders my rating. I was all set to buy this blade and called down to my local sharpening shop, who also sells Frued products. The guys there ( who have a  good reputation locally ) said not to bother with a Teflon coated blade. He recommended the Frued LU91M010 ( the same blade w/o the red Teflon coating ). He said that frquently he notices that alot of carpenters have sanded the  Teflon off around the arbor to keep it from slipping, and that uneven wear in the red Teflon is evidence of friction ( either because the blade is not true or the coating is not absolutely uniform) . Could be the saw he said, but not on as many as he has sharpened. The obvious side effect of of the uneven wear in the coating, is that likely that red coating is stuck to your trim & moldings. I was disappointed because I have come to appreciate Teflon coated router bits, but the pros usually know. I still bought Frued, it just isn't red.