After dealing with a Craftsman 22" lawnmower for 7 years, I spoke with my wife on there has to be a better way to mulch our leaves from the many trees we have in our yard. Our children is gone now and we aren't as young as we use to be. The yard isn't big enough to purchase a riding mower but hilly enough to where it is taxing. We purchased a self-propelled mower and it helped but then the bagging was still aggravating, it filled up way to fast. So I went online to Sears and found this "Advanced Mulching" blade and installed it. It carries a higher depth on the curved fingers and the pickup has been great. It mulches way more than the standard blade does and I don't have to run back over what I've already done. The weight of the bag is more, but I feel like I've done something everytime I empty the bag. When the yard is clean after one trip around I always wish I'd found this years ago. Only hold back I have, is I had to install it extra from my purchase. This should be sold on the mower; Craftsman Blade on a Craftsman Mower, why isn't it an automatic feature?

Interesting design but did not seem like it does what it claims.  The clippings did not seem any smaller than the blade that came with the Craftsman mover which was recently sharpened.  The grass clipping after a week since last mow were compared side by side.  The fins on the Adv blade seems to make the mower louder which is probably the wind resistance from the curved up fins.  This constant wind resistance I would assume putting an unnecessary load on the motor which I think will in turn reduces the efficiency of the mower (eating more gas) while turning out the same grass clippings.