When cutting with the standard blades that come with the 42" John Deer x300, if my grass was even just very slightly long I would get rows and rows of clippings from the side discharge shoot. However, when I purchased and put on the mulching blades (genuine John Deer AM141033) it essentially eliminated the problem. I will never go back to the standard blades. The difference is huge, not just for mulching, but for standard everyday cutting.
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