Cut the holes for the NACA vents today. Drilled the corners and then used a Dremel to make the cuts. Finished with a file and deburring tool. It's just a little nerve wracking to cut a hole in the side of the airplane. After discussing with another builder how to attach the plastic NACA vent scoops, I decided to use Proseal adhesive and Pulled Rivets to secure the scoops in place. I used the template to mark and drill the rivet holes. Seemed to work fairly well. Waiting for the Proseal to arrive... Since I'm doing the Aft NACA vents I'll attach the Fwd Vents at the same time.