I have modified the File-Manager
The change is in the weapons management and the exe file names.
Using the list of planesets that need the 150 weapons system you can select the appropriate exe for the planeset that you will be loading.
If it is one of those listed you need to load the "150Weapons NewMap.exe" and when you do then the 150 weapons files will be loaded automatically.
If you load the "160Weapons NewMap.exe" then if the 150 weapons files have been loaded they will be deleted
The link to the installer is in the first post in this thread
As a re-test I added four planesets with tank-buster aircraft. These were released some time ago, and they use the 160 weapons files not the 150.
The appropriate FM folders have been added to the "Planes_ETO\Plane_FM\TankBusters" folder