I stumbled across a solution this week in tall wet grass, where the stock blades would leave 10lb balls of cut grass before. I've got a bad spindle right now, trying to get my back-up mower going before I can take this one into the shop. Anyways on my 61" Ferris, I have to run 2 washers on TOP of two of the blades to get the same height right now as the "driver-side" blade. My dealer didn't have some standard blades, but did have some mulching blades, the wavey ones, not gator mulchers, not just a straight blade. I decided to give them a shot and they worked marvels against the clumping, hardly none at all and a nice smooth cut. Don't know if it's the blades, which I'm sure it is, or if it's the fact that I dropped that blade down an extra 1/4-1/3" with the washer in the deck housing, therefore giving the blade more room to chop the grass up, and not just pushing it into clumps because there's not enough room for the "teeth" on the mulching blade to work. Just wanted to throw this out there for you guys... I was to the point this spring after some wet mowing to haul my Ferris' to the dump, but now I'm just going to run the wavey-mulchers when it's wet out.