Zero-turn mowers have revolutionized lawn mowing and what it means to be fast and agile around the yard. But pure speed isn’t how great mowing is measured. Great mowing is about delivering a great-looking cut as safely and efficiently as possible.It’s generally accepted that the best speed for effective mowing is in the 3-6 mph range. Going too fast can actually result in an uneven cut. How? As the leading edge of the deck pushes the grass forward, the grass doesn’t have time to stand back up before being cut because the mower is moving so fast. Going too fast can also result in scuff marks where you slow the mower down and turn, especially if the ground is soft or damp. It’s essential to mow more slowly when the grass is really thick in order to give the deck a chance to process the clippings.So as you can see, just because you have a fast and agile zero-turn mower doesn’t mean you have to jump in the seat and start racing around the lawn like Denny Hamlin or Lewis Hamilton. Instead,...