was on a carbon fibre guitar binge the other week, found a few videos on youtube, not many, but the all carbon no wood ones didn't sound right to me, something missing, a bit lifeless maybe couldn't put my finger on it, but then that could be bad videos
the Vigier guitars with the carbon fibre (I think) strip on the back of the neck look interesting, bfoot signature has no truss rod, no idea about the rest