So mix the note, set it in place,
THEN PULL YOUR BRUSH AWAY!
If it is right, no licking or fooling with it is needed. If it is wrong, no amount of fooling with it will fix it. If the stroke is wrong, do one of two things, pull it out with the palette knife, or in practice if it is not too thick, you hit it again with a new stroke that is;
- The right note and obscures the old one
- Adds the missing element to correct the original stroke.
Richard Schmid famously said " loose is how a painting looks and not how it was made".