breaking at the bolt holes. they told me the same thing tightening is important but that dont explain why the orig. broke they are sending me a new flighting now to try. (great service from Ion)
anybody else having problem with breaking blades. I have broke 2 now in a month that i owned it. although Ions costumer service is great on replacing them (2sets now) it still sucks that this is happening
back to your question gr8 you have to kill off the crawlers they make a chemical that does that but dont know what its called or how well it works. until you get rid of them you will always have the bumps