I see. Been watching Bob G do that forever.
I actaully do the basswood part as well, then I tap all the holes for 4/40 and take a nylon 4/40 screw and drill a tiny hole through it and it is the guide instead of a brad. I used to watch Bob Wear our brads or the holes and he would have to rig them to stay in position so I went with the nylon screw option. So far, many many years on some of the setups I have that way, and no wear outs. I know I have 1000+ flights on one of them.
That is a nice plane!