Thank you for your response.
I looked into using the Abatron Products: Liquid wood followed by Wood Epox
to build up the removed areas, as also suggested by Nels Roselund. This
may be the ideal solution, but the cost of the these products (retail,
because this is for my own personal use and I have no contractor license)
that might be needed for this application and the associated preparation
and installation would appear to exceed a complete removal and ab initio
I expect that the repair will be made along the lines you followed: hardener
and fungus inhibitor. Thank you for suggesting this approach.
However, I question the use of the Thompson product. I have been told in
paint departments that this is merely wax and the usefulness of the product
is partly advertising hype.
Roy Levy, Ph.D, P.E.