I agree with you on the point regarding drilling holes in carbon because it doesn't like being drilled and in fact aluminium takes holes being drilled in it much better than carbon.
If drilling holes in carbon and especially if riveting to it it is a good idea to have some glass or kevlar in the laminate.
Regards, Phill
I know that the voices in my head aint real, but they have some pretty good ideas. There is no such thing as a quick fix and I've never had free lunch!
