Just made a few changes on my 20/52 Fastrak, and MAN what a diference! 1) adjusted deck belt tension (30 hrs) 2) installed new Gator Magnum blades, replacing stock low lifts 3) reinstalled original metal deck chute, replacing rubber one off of mini z I'm not sure which change made the most difference, or maybe just a little of all three. The discharge velocity is AWESOME, almost scary compared to what I had before. The clippings are now pulverized, and the underside of the deck is totally clean, even after some damp cutting. I definitely love the Gators. How much of a difference could the deck belt adjustment make? How about changing from an ill fitting chute?