Kelsey, rocks on the lawn might mean a bruised ankle with a rotary, but they mean a $100 resharpen (of both reel and bedknife) on a cylinder mower. A clean lawn is the way to go in both cases, but with a cylinder mower, the alternative is really ugly. For one thing, after just a few resharpenings you need a new reel or to rebuild the old one with new blades.
