RE: Fiber glassing question.
((((((((((Bristol))))))))))one of my old stomping grounds, (back in the day)(60s)
If it were me,,an what i do,(because the drill will dance around an try to go into the wood, I would take a "all" if you have one, or a finishing nail after the epoxy gets really sticky an simply use it to reestablish the hole,unless you have blind nuts , in that case youll need to fill the holes with clay of something you can dig out after epoxy sets..
I flew years ago at a water meat at "Brim-field dam"
Falcon