
Just a hunch about the 7:30 and after cluster of stuff. Hunch coming from experience and your history of trouble sleeping.
If we omit that section of time the AHI will change quite a bit for the better. Wouldn't be quite so ugly.
Remember awake/half awake flagged stuff doesn't count in the asleep evaluations.
If you can handle it let's try 7 minimum tonight and maybe be prepared to try it longer than one night.
You are getting very close to some optimal settings.
I think that you are still likely having quite a bit of SWJ clouding the picture.