I have a Hustler Raptor SD 48" that is about 5 years old. The mower has been a solid mower with a Kawi motor other than the discharge and grass buildup under the deck. I had the dealer intstall the OEM discharge kit a couple years ago which he said would be free but then charged me and and it still sucks at discharging grass. I think the engineers at Hustler just really missed it on the deck design of these Raptor SD's. I have tried a number of different blades. I left the Gator blades on from last fall munching leaves and after two mows this spring (deck was clean) the thing had a ton of buildup so I just scrapped the deck again (a plastic grocery bag full of grass) and put the high lift blades back on. I emailed Hustler and they said take it to a dealer and have the RPM's checked which I asked the dealer to do that when they installed the discharge shoot but knowing the dealer they probably never bothered with it. Has anyone else seen the RPM's too low and raising it helped the discharge? What is the RPM suppose to be at? I can take it to my dad's to check it. I guess as far as blades the high lift leave the least buildup in the spring and fall and Gators in the summer to munch up those dead pieces that just lay on top of the grass. Any suggestions would be appreciated. I just feel like putting this thing on craigslist and starting over again with an X-Mark or Scag. You shouldn't have to scrape the deck every other time you mow a one acre yard in the spring right??? Thanks!