Well, since I'm getting my backpack tommorow I would like to know one thing about the clutch. I'm buying a Stihl, not the Echo, found out the one I wanted wasn't worth it. Anyway, there was a post about running at full throttle becuase of clutch wear. I don't know if they were talking about Shindaiwa equipment or all manufactuers but I would like to know about these clutches. Wouldn't backpack blowers not have a clutch because when you start them they are automaticaly blowing air? I'm confusing myself. Please help!