I just got finished cutting up leaves with the regular 60" MMM blades. I'll have to say it does a good job cutting/mulching leaves after you run em over a few times. My question is would a set of mulching blades do the job a little quicker? Do I need to buy a kit or would just the blades suffice? Where to buy kit and how much? I would not want to mulch in the summer only in the fall to get rid of 5 acres of leaves. It shure beats burning them!!