When the college I worked at bought their turf I was told there were 3 types to chose from, short blade which was fast, long blade which was slow, and a medium. The company also said that the infill's job was to support the blades, and the blades job was to keep the infill in place. After two years we had the company come in and clean the turf with a vacuum/sweeper, another part of keeping up the warranty. We also had a turf soccer/lacrosse field. The machine swept up the infill, ran it through a screen and dropped it back on the blades. I could not believe the junk that collected in the turf after only two years, leaf debris, grass clippings and other natural stuff that blew onto the field. The really surprising part was the amount of human hair, and hair ties, clips, pocket change, etc. I don't know how they clean the natural infill.Do any of these natural fill materials (coconut, olive, etc.) help reduce the extra bounce I see on rubber crumb turf fields?