Yes, when you laminate pieces with unlike grain, you gain a lot of stiffness. I like the idea of the CF inside the 1/16" sides as well as the FG outside, although I haven't yet used both. My last profile had 1/2" core with 1/16" laminations and biased FG w/resin for a skin. It is very stiff and torque resistant, but the inner CF seems like positive step. I'll probably try that. Eric's kit looks gorgeous.
SK