I tried grinding up some leaves at one of our condos in a wide open area that I would normally open up the back of the Walker anyway. This is an old monastery that was converted to condos about 25 years ago. Trees are huge ( mostly Oaks and Maples) and drop a ton of leaves. I used a 48 Exmark with a 14 Hp Kawi and brand new mulching blades. I went over it about 3 times, took me way too long and it looked like crap when I was done. We ended up going over it with the Walkers, and sucking it up into the truck which is what I should have done to begin with. We don't have curbside leaf pick up in these parts. Maybe I'm too fussy, but I won't have my properties looking like that.