heres another fin , it has a glass layer around the perimeter , the leading edge is 4 layers of uni directional woven roveings and the trailing edge is a single layer of 30z satin weave , the satin weave is the tightest weave available and can be sanded down to a razor edge
mabe we mite see this layup around in the future because the roveings are all in the one direction , there is no weave in the glass on the leading edge to cause serration