I hear that some of you guys discharge instead of mulch? What are the advantages of discharging over mulching? I thought discharging didn't cut up grass as fine as mulching. So why discharge? Does grass have to be mulched or does discharging cut it up enough? Does double blade discharging cut up as fine as single blade mulching? Does double blade discharging cut up as fine as double blade mulching? Let me in on this discharging stuff!!! I've always mulched.