OK, I have read through a bunch of threads on touch up. I have a customer who wanted me to touch up a frame for him, it is a 2" wide medium to dark oak with various directional scratches here and there. There are some surface nicks that need to be filled, and opposite corners that are pretty banged up. I have tried all different tricks suggested on here, but to no avail. The frame IS natural wood!!!!!. It won't even hold stain. Is the only option left to replace the frame?