Just purchased a new 727A, and mowed for three hours with the mulch kit installed. Grass was dry bahia, six inches high. When finished, I removed the belt pulley covers, and could not believe how densely packed the grass clippings were around the spindles. I mean they were packed tight. Is this common? I can't imagine having to clean around the spindles, digging them out, every time I mow. I noticed that the 7 Iron deck has square holes stamped in various spots in the top of the deck surface, maybe for attachments or something. Could the grass clippings be getting blown through these? Should the holes be blocked? Or would just switching to side discharge prevent grass buildup on top of the deck? Thanks for any help.