I'd love to hear what you think in the comments. Here are my thoughts:
If you don't have XMode, then you need a rear Torq locker.
If you do have XMode, then I don't think that you need a rear locker.
However, I plan to add a rear locker AFTER I gain the
ability to manually control the center clutch.
Newer Subarus should be able to do a version of
the classic "SG Forester center diff lock mod"
More about this in my next video!