I have been using Fromby's furniture refinisher with a tooth brush. This worked well for me in the past but this one just is not coming as clean as I think it could be. I did do one last summer in the hot sun and it did allow the oils to seep out, so maybe that with some steam will get it there. I'll try and take some pictures and get them posted. This stock is kinda a special one, I found it at a show a few months back. It was dark and grungy but I could read a RSG in the sling well and the high wood was good and strong, no metal. He was asking $35. I bought it for $25. and when I got it outside I could see the S'G' side ways. So it's good for either a IP or a S'G" and those are bringing lots of coin right now. In short I want to get it right, and will hold off on the boiling water idea for now. Thanks