I recently purchased an '07 Ferris 1500Z 48/21. Love the machine, built like a tank and cuts great. One thing I would like to improve on is the clippings coming out of the chute. I do not bag, and the dispersal of the clippings from the chute is excellent, but the clippings are a little bit long. I was thinking that running doubles might chop them up a little smaller. Its not a problem now, but I think in the fall when the grass is s bit thicker, build up may be a problem. Anyway my dealer says there is no "doubles" kit for the Ferris, but I was wondering if anyone else could give there experiences and recommendations.