Saw that Godot is open source.
If I were to modify a dll to get 8 XInput devices working via DirectInput would you be willing to make build with that?
The best would be if I managed to introduce a disable XInput switch in a good place and make a pull request to get the feature into the Godot master branch. I'm not much of a C++ coder though so we'll see how that would goes. First I need to find the time... and before this I would want to migrate all levels.