Have you done more research into CF layup? A lot of the characteristics of carbon fiber and defined by the weave of the cloth and layup of the module.

The problem with quadrotors are that they're effectively 4 tubes on CF bolted together. A single module system with proper dampening would probably be perfect.

For example go ride a really cheap carbon fiber bicycle where they just stick carbon fabric into a mold and then go ride one of the really high end ones where a lot of engineering has gone into the layup and construction.