Thanks to all of you for your opinions. I think it should be centered under the tail light and lower down. I'm still not sure if centered between the conical lines would look good or not. It might look good at a distance being parallel to the ground but up close it would look funny not following the line of the car.

ALL that being said, I've gotten used to it. "PERFECTION IS THE ENEMY OF GOOD" I can live with it.