The generator is currently not up. I work at sea for 6 weeks at a time, and since it is at my cabin, I only put it up while I am home, for 6 weeks at a stretch. It has been up for some very strong winds, about 65-70 Kph, and runs very quiet and smooth. At those wind speeds, I noticed it was just begining to furl. I can't really say much about the blades until I see it spinning for a longer time, but I can state that the blades, hub and shaft adaptor are all very good quality and look robust.Some day I'll get a diversion load controller and leave it up full time.