I have heard more than once that some skeleton builders don’t like the gloss left over from CA glues, including from Lee Post himself, who literally wrote the book on bone building. But CA glues work the best for bone building, so what do you do about this? Simple, you just need a dremel tool and a pack of wire brush tips. I recommend a pack of them because they do wear out quickly. If you don’t already have a dremel setup I also highly recommend a flex shaft attachment and a keyless chuck. It just makes the tool easier to use.
Now I’ll state that this is not for idiots or people that don’t understand finesse. The wire will absolutely etch right into the bone. You just lightly brush it over the glued areas and 2 things happen. One, it removes excess glue. Two, it dulls the sheen on left over glue to render it virtually invisible.
I do this as I go along with each build. Unfortunately I did not figure this out until about a year or so into building skeletons, so my early work definitely has glossy spots.
Hopefully this helps someone take their building skills to the next level like it did me. Give it a shot, but be careful!