Most of the time its the "hastle factor" that stops us from doing proper maintenance. Not a man here that doesn"t know they should remove the blades, inspect, sharpen, balance, etc. We're just too lazy and get away year after year with shortcuts. After having a tip thrown approximately 50 yards and come thru the side of our metal warehouse travelling another 40ft at ankle level before skidding and clanging into the front where I was standing I became a believer in doing it right. Get a setup that makes it simple and do it atleast once a year. Use a flap disk instead of an abrasive wheel and I bet you find it more manageable.