When I hold the reed valve up to a light source I can see what look like pin holes in the reed petals. Should I be concerned?

Absolutely not. There are multiple plies of carbon fiber weave in a reed petal. In some sheets of carbon that we cut the reeds from, there are sections where the fiber weaves line up and makes it look like you have pin holes. However the area is structurally sound as there is clear epoxy resin covering the entire reed petal surface on both sides. We can easily make a reed petal that does not have the pin hole illusion, but that would change the tension and performance of the reed petal and that's a sacrifice we're not willing to make.