I was having the same problem that several others mentioned: when mowing into leaves to mulch them, some would blow away from the deck, because of the wind produced by the blades. What has worked well for me, was to remove 2 spacers from the spindles, bring the blades (double, of course) up higher into he deck. No spacers now. Less wind blows out under the deck; the mulching is better than ever, and the cut is fine. Deck is about 5" deep, and the blades are now 1 1/4" above the bottom of the deck. Anyone else discover a better way or a "trick" that may benefit us?