This is what so interesting/frustrating/fun about Luftwaffe aircraft... some things we'll just never know. Evan, I would agree with your conclusion as being very plausible after looking at the tail spot pictures individually but would alter that conclusion after evaluating the pictures together. It's obvious to me that the spots on different aircraft are not simply similar in size and shape but share traits of being identical, thus leading to my conclusion that some sort of pre-fabricated pattern was used. Anywhoo... it was fun looking at Marc
-André Haldimann's astounding collection of wartime 109 photos on Facebook in detective mode.
Speaking of tail spots... I tackled Blue 16's tail spots just now. After masking off the tail and painting it Dark Green (RLM 83), I used small pieces of Blu Tack to replicate the spots.
I sprayed over the tail with RLM 75. This came out fairly well except there where the Blu Tack lifted paint in the middle of the spots... how to fix these???
Removing additional masks revealed more lifted tape. Again, a very tough fix. I'm really worried about the masks on bottom of the horizontal stabs lifting huge spots of paint when I remove them.
So... I did it over. This time I used RLM 81. The tail assembly of Blue 16 is missing in the photo so there is no authoritative answer but some references state that the tail was likely RLM 81 over RLM 83 based on other similarly colored Batch 331xxx aircraft.
Some more lifted paint but since they are away from any borders, they'll be easy to fix. And miraculously the stabilizer masks came off really clean.
The wavy pattern on the bottom edge of the rudder was cut from masking tape. I experimented with a couple of possible techniques for this including brush painting and Micro Mask but settled on drawing the wavy pattern on piece of Tamiya tape and cutting with a pair of small scissors.
On we go...