Post Dave's blueprint Edits are in bold italic - needed to correct myself...
They are both incorrect in different ways. It was actually an interesting problem, and everything made sense once I looked at the issue from a construction point of view instead of a software POV.
In software it was easiest to first complete the main mast, then copy it and cut off from the bottom the forecastle height, this resulted in the searchlight platforms being the same diameter and size. Unfortunately this also puts them at the same height on both masts. Creating the masts this way also meant the forward mast had a slightly smaller base diameter, as the masts tapper with height and I had taken the height difference off from the bottom. -Based on the bluprints the foremast actually did have a smaller diameter base
Thinking from a construction POV, the builders no doubt started with two identical bases and searchlight platforms - Incorrect, the vertical rods were just shorter for the foremast. This fixes everything -Haha!; the bases and platforms are now the same sizes and the platforms are necessarily higher on the forward mast as their positions are relative to their bases -They are actually higher than just the deck hieght offset.
So they both got’a go -This is still true :).
There is a bright side – the searchlight platform supports on the v1 cagemasts were designed too thin and failed to print, the platforms as a result, are warped upwards {a bit) as they extend from the center. The platform supports I added by hand to fix their absence are kind of clunky, so I’m hoping I can print better replacements that fix all their major issues -Also still true.