Thanks for the feedback.

I made it down to the bike shop this evening and tried out a new CAAD9. Just a quick ride around the block, but it sure felt familiar, lively, yet still comfortable - much like my CAAD5.

I also tried a Six just to see what a carbon frame is all about (had never ridden one before). It was certainly stiff and responsive, but maybe didn't have that sense of lively energy that I get from the CAADs.

From the little bit I rode, both seemed like great bikes but I decided to stick with what I know and put in an order for a 60cm CAAD9 1.