The pits on mine appear to be concentrated near the exhaust.
However in trying to see if this is true I prefit my bezels with lenses and I can't figure out which way is up (yep, I said that).
The car is high on a lift with another under it so test fitting these is awkward.
The bezels have standoffs off only one side so the lens is canted. After looking at pics it's still not clear as there are so many different taillight panels. Mine is a flat panel with large inside buckets.