Most all hardware, metals, parts and fabrications are certified aircraft quality. Over and over, Velocity builders demonstrate their ability to adapt to Velocity's composite building techniques. When composing the building manual, Velocity assumed that the builder had no experience in aerodynamics or airframe construction, and does not try to teach this. By the time your Velocity is complete, you will have a good understanding of composites and how to work with them, as well as a helpful bit of knowledge in simple basic electrical, fuel, and mechanical systems. Answers to your questions are as close as your telephone.
All foam cores are pre-cut, with level lines in place for proper alignment.
Foam core vacuum bagged composite shell. White epoxy primed and pre-marked for all cutouts. Upper cowl attached. Foam core vacuum bagged composite shell. Lower cowl attached.