Bob: My thought is to leave it as is. The justification is:
a. It doesn't stick out. In fact if you wouldn't have mentioned it I probably wouldn't have noticed it.
b. Considering "a", it's not worth damaging your already nice paint job. It's like declining a penalty on an extra point...never take points off the board and
c. It's on the underside of the wing so no one will see it once it's displayed.
That being said, if it's really bugging you, do what you need to do. I know sometimes I just have to go back and correct something to get it off my mind!