Picked up a 2019 sustainable hummingbird. The wax finish around the sides appears worn, Id guess from rubbing on the case as it’s prominent all the way round but just along the bottom . I’ve read that these guitars are finished with a linseed oil treatment then pure beeswax. I’m wondering how best to go about touching up the wax. Is a linseed-beeswax polish suitable or should i be just applying straight pure beeswax, presumably heated up and buffed off. How would it have been done in factory?