Sap Pocket Under Paint

the “best” way would be to cut it out and put in a “Dutchman” of the same
grain pattern. then prime & paint as normal.
I would not use epoxy as it is much harder than the surrounding tissue and
will leave the proverbial grave outline.
but, I very often dig it out and slap in some Bondo autobody filler too.
just depends on the project and time of day.
if the dutchman patch did not fit perfectly, I would still use Bondo to fill any gaps.
(under paint that is. with a stain or clear finish, you have to be a little more imaginative).

-- I am a painter. That's what I do. I paint things --

For a pocket that size, removal would be best. I’ve used Bondo in the past for such things and it’s always worked well…but i recently tried this JB Weld Wood Restore and I prefer it to the bondo.

-- Our village hasn't lost it's idiot, he was elected to congress.

I would just make another piece. It is only Douglas Fir, after all, not some high priced exotic species.

Chip it out and bondo it.

-- Everything is a prototype thats why its one of a kind!!