Today I made a point to install the GT4 Spec II mod, and get the Logitech G923 working in G Hub, which turned out to be a bit of a headache until I found juuuuust the right older G Hub build (the recommended versions of G Hub were not working for me). I eventually got it working in GT4 Spec II with FFB, and.... Sweet Mother Mary! It's like I'm falling in love with GT4 all over again. The AI isn't exactly ideal, but experiencing all the old tracks like El Capitan, Grand Valley (the good version), Tokyo Route 246, Midfield, Autumn Ring, Grand Canyon, Tahiti Maze, etc... it's just magical.
I'm loving all the new engine sounds, the quality of life improvements (like a quick menu for navigation), the new rim choices, the event synthesizer, etc... Even the FFB (while a bit on the light side) is very communicative.
It is so very nice to be able to come back to a beloved game from my mid 20's and still be able to derive so much enjoyment from it 20 years later. I have huge respect for the individual who put this mod together. Solid on all counts.