The Toro deck doesn't mulch or re-cut the clippings on the way out. SFS system cuts grass blade once and doesn't re-cut. Results are a smooth, even discharge, even it wet grass.<p>Exmark specifically throws clipping from 1 cutting blade into the next to be re-cut. Results are clumpy wads in wet grass, but near perfection in dry grass.<p>Bottom line, both have their advantages and disadvantages, neither were designed by idiots, but:<p>The wetter the better with Toro.<br>The drier the better with Exmark.<p>You like the Toro's better in the spring when it's wet and the Examrk better in the summer and especially fall for leaf mulching.