Today, on one of my properties I decided to mulch only. I usuallly use side discharge then bag for leaves. I put the mulch kit on (60" lazer) with gator magnums and went at it. Production was much faster with little blowout. Last year I tried this set-up and blowout was terrible. Here's what was different. The deck was 1/2 lower in the front instead of 1/4". Even the oak leaves were destroyed. On this same property last week, I took trailer full trailer load ( heaped on) off of this property. Today, all of the leaves fit on one tarp. I should also mention that there were twice as many leaves this week. My whole point is: if you are experiencing lots of blowout to try and lower the front of the deck. Good luck with the leaves.