Good! No goop, back to "as-built" condition.

I'd remove the stem by twisting in the direction that _tightens_ the metal insert - - probably clockwise.

I would also have used epoxy (if it were necessary). Uncured epoxy is rather nasty. But _cured_ epoxy is pretty well inert. Of course, if you used epoxy, the metal insert would be un-removable.

Charles