I just had a look at the gallery on CG's website. There are one or two tanks in the pix, and the rest are casual kilts.
You can really see the difference between the tanks and the casuals. It's not just the way they react to the wind - Tanks being much more wind resistant. It's also the way they look when standing still.
Frankly, casuals don't compare to tanks. Casuals look OK, but tanks look absolutely fantastic. (Take a look at some of the photos in Barbs book to get a better look.)
I would be interested to know how many of us have had wind problems when weating a 13oz or heavier tank.

Cheers