Your wood one looks like its 2 meters diameter. Judging by the videos you've posted in the past that will only be a ton of force against it in your kind of weather. I'm thinking it will tip over for sure in your gales. Heck, tecon's much smaller six bladed one was tipping over a basketball hoop pole in winds than were in the 20-30 mph range, and that was with the ballast and all down at ground level.
You're a brave man superwindy. Having that many in your garden is likely to attract the attention of the council via a p****** off neighbour. Do they make a lot of noise?
My gen went up by degrees; a small one was replaced by a larger one but kept the same blades for a while, these would be replaced later with larger blades but the same colour etc. It also got higher over time too.
These changes often took place at night, the neighbours must think I have very fertile soil, it can make a wind turbine grow!