SORRY !! I'm "old-school" I'll stick to edging with my "Shindaiwa stick-edgers", it's MY opinion, a "blade" gives a better "manicured" look to the lawn, when I worked with my son's lawn service ( South Fl. ..years ago ) most South Fl. yards are Saint Augustine grass ..... very thick and fast growing, in several neighborhoods, we would actually use new blades and "kick" the blade at a slight angle when edging, giving a 1 to 1 1/2 inch space between the lawn and the drive / walkways (concrete / NEVER Asphalt) a sort of "trench" which resulted in a look, as if the lawn was a "laid-in" piece of green carpet, of course the homeowners agreed to a bit higher charge for "that-look" because it involved a bit more blowing to get the resulting dirt away from the lawn, (and it of course used more blades) but after the initial edging, you only needed to edge it on the 3rd or 4th cutting, and, it was usually faster as the trench was already there, NO I'm NOT givin up on my stick-edgers, besides ...edging and trimming are 2 different things, edging with a line trimmer is the lazy man's way out ! ..:laughing:..:laughing: