I see that many of Al Stohlman's works on figure carving and pictorial carving show Craftool A98 or A99 being used to get into small corners that an A104 or matting stamp would not fit into. In Figure Carving Finesse, A98 is listed with pointed bevelers, as though it is the thin version of the checked pointed beveler F976. And the A99 is listed with the matting tools. But I haven't found any other writing by Stohlman to explain their correct usage. I know the A104-2 and even an A888-2 exists by some manufacturers to do detail work, also.
How do you use these stamps? Should they be used for beveling and matting as the book suggests? What are the benefits of the finer mesh on these tools?