Double Glazing
I agree the BM unit is tops, is it available in the UK now? It didn't used to be, I got mine in Germany - no bloody cheaper than the £60 quid quoted here though.
The fog city will fit but you have to use a very narrow one due to the double curvature of the visor so you can get a "letter box" effect - OK unless you pop the visor for a bit more fresh air then you can end up looking through the glued edges.
I'd definately go for the BM unit if buying again & if you use an ordinary visor in the summer when you dont need the antimist effect it keeps the dearer double skinned unit lasting longer, so unless you do a very high mileage (or are dim enough to clean it with something akin to a brillo pad) you should get a couple of winters out of it - the Yorkshireman in me speaks!
Ade