Flap hinge countersink question

[Brantel]

Since this is already dimpled, I would leave as is and if it really bothers you, put a backer in there like was mentioned before. I did this on my rear spar of my left elevator on the outboard side top because I was having a bad day and countersunk the entire top of the spar not thinking that the hinge does not reach the last 4 outboard holes. Instead of a new spar, I just added a backing strip in there to create the same situation as the holes with the hinge.