I have noticed when I got my new blade for my 21"er it was a pain to use. It cuts the pieces so small that they get into little clump ball. I have to double cut every time but when my blade was just "sharp" it was fine and did great but not mulched them so small that they can't be blown. Also It bags a lot more then with just being sharp which is nice. I use to be bagging 3 bags with this blade it will be 1 bag. Any input on past experiences?