I just installed the full mulch kit on my 61in tiger and mowed for the first time today. I'm never taking it off!! I plowed through wet/tall/thick grass and it left a nearly perfect finish (without the mess on the sidewalk and driveway that discharging wet grass leaves behind). Todays lawns were cut at 3 3.5 and 4in with good results even at 4in. I think my customers will love it too. The only problem is my 25hp kohler is underpowered so I had to slow down for the thick stuff. All in all though It's even better than I was expecting. I would recommend mulching to anyone with an advantage deck.