Could be a timing thing. The pictures you posted look like they have the rear-view mirrors on them - and since they were only operational just before D-day, could be a timeline thing? I'm guessing maybe the P-51's from early 45?
Major Olds P-51 pictured above (that one was SCAT#5) went through aircraft like mechanics go through sockets... and by war's end was flying #VII.
So, black-strip, no black-strip, depends on the timeline I guess.