Well... truth be told, I had a "go" at an LE commercial carbine stock. Short story is I got this last year, from a friend. The left side of the stock had fire damage or an attempt at branding (it was like this when my friend acquired it). Last Saturday, I started picking at it and found the damage had been filled with an old wood filler. Also found a few drilled holes. Very bizarre...
So I decided to cut out the damaged portion and patch in a new piece of walnut. Matching the finish is always difficult, but at least the damaged portion is gone, and the carbine got some TLC after many years.
After staining and several coats of RLO, the wood surrounding the patch is slowly starting to darken. At least it killed two days of quarantine.