One post in this thread did mention the non-appearance of Tulagi, one of the islets close to the coast of Florida where the Marine Paras and Rangers suffered such appalling casualties. To expand...
There was no minor port at Guadalcanal. The only reason Guadalcanal had strategic value was that it had a large grassy area on its north shore suitable for building an airstrip. but no minor port, not even a worthwhile anchorage.
The minor port was at Tulagi (or, if you like, in the sheltered waters between Tulagi and Florida. Tulagi was so important that it was the administrative centre for the whole of the Solomons. The Japanese used it as a seaplane base (as they did Shortlands).
So at this scale the minor port symbol should be at Florida and the southeast hex of Guadalcanal (on the basis of DFE) should be plain terrain suitable for four airbases (Henderson, Fighter 1, Fighter 2, and Carney).
Is Guadalcanal supposed to be a two-front port? Espiritu Santo certainly should be, but I am not sure about Guadalcanal/Florida.
If you insist on keeping Guadalcanal as a minor port so as to focus attention on it, then please move the symbol to the eastern hex, which is where Henderson Field was (at the point where the north coast bends southeast). Also, all but Ichiki's attack came from the west, so this will allow the Japanese to contest the island in the historical way.
Why are islands like Florida, Russell and Vella Lavella without jungle? They were all covered in jungle, which is why the flat grassy area on Guadalcanal was so valuable.