Saw a comment about most mowers failure to discharge well, especially in wet grass. gene gls said the middle blade has to handle the left ones grass as well as its own, and the right takes the clippings from all three. This leaves the left(trim edge)blade case clogged if wet or tall grass is mowed. He suggested free flowing decks-I have never heard of one. Please elaborate. Every mower I have seen has blades that pass the grass to the chute.