Doing well, mate, thanks. I know that you're a year-round commuter on the bike and it makes sense, even if it must be cold and wet many days. Yup, warm and sunny still here.
Rather than dismantle the entire unit, if it keeps misting up, perhaps bore a 1cm hole (or two) in the rear to allow moisture to evaporate. Plug with a rubber grommet afterwards.
Merry Xmas to you and yours, too.