Just asking out there- Our crew have been trying to argue with us about the fact we sharpen our mower blades each morning before the crew takes them out. We have always done so 20+ years now. We run walker mowers and 52" walk behinds. They believe it is more cost effective to just replace new blades after a couple of weeks. We know that a sharp blade cuts the grass properly. Just looking for feedback as to a percentage of daily blade sharpeners to others who just replace when they get dull. .