Filling rib holes?

I don't know if I ever saw this question before the crash but I've been pulling broken planking and some of my nail holes are a little larger than I'd prefer. Now for those of you who have restored more than one or two canoes do any of you fill these with bondo, epoxy, etc. before attaching your new planking? (holes on the outside of hull). I know I can just attach new planking but what's the school of thought here?