Very - for most of us our boats are our principal toys - they should look nice.How important are cosmetics?
I did that 5 years ago. Now I have to do it again. I took great pains in the new sole. I soaked the ends with a ton on MAS thin epoxy and coated top bottom and sides with the same. 4 coats I believe. 6 coats of varnish on top of that. In a heated shop under perfect conditions. Sealed for a lifetime or so I thought. Took forever to do.I'm replacing my teak & holly plywood floors with teak & holly plywood. The original floors lasted some 25 years so I think it will be OK. I am going to seal the edges and bottoms with epoxy (something Schock did not do) to at least slow the eventual rot.