Ahhh...Cannondale doesn't actually have WSD geometry on any of their road bikes. What they often do is have specific smaller components (with Shimano brake levers...SRAM are all adjustable) and women's saddles. If you were comfiest on the SuperSix it makes me wonder if you really need WSD. Cervelo doesn't do any bikes with WSD. They have found that the differences between male and female proportions are not as great as the differences between individuals of either gender. I'm not convinced that WSD is anything more than marketing. I'm a short female and I'm all torso. The bikes that actually have WSD geometry wouldn't work for me, though they'd work for a guy with long legs and short torso.

My first bike was a women's Cdale Synapse. It was too relaxed, but it was my first bike and I didn't really know what I'd end up liking. My current bike is a Cdale SuperSix and I'm really happy with it (aside from crotch issues, which I would have on any bike, since I have a really anterior rotated pelvis). I've got good flexibility. Had I known I'd be so comfortable on a more aggressive frame and enjoy racing I would have gone with this sort of bike from the get-go. It's sometimes difficult to know what you'll like with a first bike, unfortunately.