Worm Holes

I have a commission to build a pair of my little backpacking sticks for a guy who works where I buy some of my wood and his father. He wants me to use chestnut and is supplying the pieces for the project. As a result I bought a piece of chestnut and am building myself a little stick that may go to my daughter when done.

The chestnut seems to have a worm hole here and there and they can't all be avoided. So when there is only a couple worm holes in the instrument would you fill all of them? Fill only ones that are especially poorly located, or fill none of them?

When there are a lot of them I am definitely inclined to embrace them and leave them as is. When there are a couple it seems like less of a slam dunk.

BTW, chestnut seems very nice to work with. It is pretty hard while still being quite light, making it especially attractive for my ultralight backpacking sticks and dulcimers. It can be hard to find much of but there are some reclaimed pieces at a few of the wood suppliers I use and the price seems OK to me.