The outer strips were placed flush to the outside edge of the part outline. So now the outside edge can be flush routed for final shaping of the template. Again be careful of waste parts if any so they do not become projectiles.
A wood chisel and small hammer can be used to remove the oak guide strips from the template. There will be some tear out. Hopefully, it will not be a lot. The only thing this will affect is how the template looks unless it is excessive and would affect the bearing riding smoothly. This is partly why we use the 3/4″ MDF and try not to overdo the CA glue. Mike likes his looking nice (OCD) so he runs the templates through a surface sander to smooth them out. I just sand the rough spots and leave it at that.
Now make some alignment pins out of the 3/16″ dowels. First test drill a scrap piece of MDF with a 3/16″ drill. Test fit the 3/16″ dowels to be sure they make a nice snug fit. If they are too loose the part will move around. My numbered drill set is where I had to go to find a perfect sized bit to drill the alignment pin holes. During testing, I found that some of the dowels fit differently in the same size hole. So, I made several size alignment pins. Some are very tight, some are tight and some are perfect fit. The very tight ones can be used later if the holes get too loose. Cut some 1″ pieces of the oak guide strips to make a head for the alignment pins. Drill a hole in the center of each head and glue a section of dowel into the holes. If you make several sizes, color code them for easy identification.
Finally, select locations to drill alignment holes into the template. These same holes will be drilled in the parts made by the template. So choose locations that are suitable and do not interfere with formers, wing tubes and etc. Stay at least 1/2 inch from where you believe a form will be positioned later. Otherwise, CA will dribble from the alignment pin hole when we glue the former in place. Notice in the photo on the right where the alignment pin hole is located with respect to the former location.
Label your fuselage templates so when you have made several you can identify it for which plane. Make templates for all the parts needed for the airframes outside surfaces. Storage should be on a flat surface, or hanging to ensure they stay flat and straight.