Today I installed the fins on the current project I cut out and filled and sanded yesterday. Tacked them in place with JB Kwik Weld. Masked and then did the fillets. Did all eight at once. I drew a fin pattern on some graph paper, cut them out and temporarily glued them to a sheet of 1/8th ply. I'm using 1/8th instead of my usual 1/4 ply because the fins are going to be big. That's for the next project. I have a lot of irons in the fire.