Get the Fin Box In.

I made this template using some left over pegboard and raising it up a tad using some left over balsa. The cut went well. No problems cutting the hole. I used a 1/4 inch router bit with the DeWalt router. Had to make the template pretty low because the bit I used wasn't long enough to cut out a 1 1/8 inch hole.

I needed to do shallow cuts. Probably a 1/4 of an inch at a time. It was weird, any deeper than that, the sound it made was intolerable although it cut just fine.