Don’t feel so bad, I think your holes may have already been there. I cut a 10 inch hickory log the first week of august and it had a hole in it about 3 inches in from the bark at the cut. I immediately pulled the bark off but have still found some holes. In fact that is why I joined this site, to find out how to deal with a worm hole back to belly(back actually has a place a little bigger than a quarter raised up like a knot kind of but it is apparently where the culprit bored in and the tree healed itself. How awesome to immediately find info on the subject. I will check the build-along. Thanks guys.