WP,
Thickened epoxy works good, if you thicken it with fine sawdust , usually from a sander...
If you want an exact color match, or real close to it... you'll need to play with it a bit because thickened epoxy with the same sawdust as the wood being filled usually comes out a tick darker.
Glen Smith from the Bear Mountain Boat forum told me that he uses regular white baking flour to lighten his batch of thickened epoxy... I haven't tried that yet, but Glen has never steered me wrong.
BTW- Micheal... nice job showing and documenting your test results.
