yes it does move in wind and i have plan to restrain the mount from above. It is a windy site yes I do have to realign it in winter. At moment its aligned but get i cant anything above 30w or 35e etc possiblt due to location of dish i guess.
i was thinking of having it moved in the summer to the corner of the house just above eaves line of pitched roof. Only prblem is being a windy site I would need a ladder to get up their Thats why i placed it on a garden mount pole and can get 30E to 30w but with realigning in winter(currenly aligned )