Have you got any sort of antivibration mounts on the turbine? I have 4 on mine (1 either end of a scaffold bar, 2 scaffold bars on the horizontal about 3 feet apart, then 2 scaffold clamps holding the turbine pole vertical), and the difference is fantastic! My bedroom is directly under the turbine (I have a townhouse, with this on the roof), and if I whisper, I cant hear the turbine over me. Sleep through it without any problem. Previous to this, I had to shut it down at night, as the vibration rattled through the whole house. The mounts are 4" x4" x 2" and are used for naval applications and engine vibration damping. Cost was £20 for a set of 4 from Ebay.
I know what you mean about the wind, I changed 2 futurenergy chassis today for chesiredaves (on here) chassis, which dont furl until 40 mph, and barely managed to get enough wind to make it change direction. Incidently, these get my vote! seriously overengineered piece of kit. As for windspeed, keep an eye on www.winguru.com
its normally pretty accurate.
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