I have a 20/52 Fastrak. I would like to be able to cut the grass a little higher. I am currently using the Hustler gator blades. When I set the deck above 3.25" I get a pretty uneven cut, especially if the grass is a little wet. Someone mentioned running double gators might help. I tried it yesterday and it did help in the wet grass, but I still cant get a very good cut at 3.5" and above without double cutting. Any suggestions?