I am not completely understanding the point where you think, that I changed my mind.I have a question Uwe: When I questioned if the nails should really be in one straight row from gunwale to keel you said, if I'm not mistaken, that it would be redundant to have 2 rows of nails for the futtock overlaps. Obviously you have at a later stage changed your mind. Why?
View attachment 216552
In the following I am using your markings (turned photo by 180°) to compare and overlay with my sketch afterwards
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butt joints are green - planks are blue - nails are red
With this I think you can understand my thinking, where a nail should be following "my" pattern
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Alternativ, but I did not follow, could be also this pattern
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Maybe based on this sketch you could once more try to explain your point?