Booth, what do you mean by your last but one post? I've got three layers of good wax on my car (victoria concourse), with everything bar front windows and windscreen plastered with it...topped up with megs ultimate speed detailer every time I wash it, but I still get drenched with runoff from the roof.
MK6 has a pathetic roof gutter, but I'm not too sure if I like the look of the wind deflectors...may have to take the plunge though if I can't find an alternative solution!