First 2 nights

[OpalRose]

Well, your median 95% pressure reading is over 10cm and it hasn't brought down the FL, but I'll leave that up to you if you wish to experiment.  

Focus on comfort. Higher pressures don't always give better results.

[PeaceLoveAndPizza]

Whilst we may not expect it to make any real difference, giving 10 a go for a night or two may be worth the experiment. 

Once you have AHI under control as you do, one of the main remaining things to attempt managing are arousals. All we have is pressure to keep the airway open, so sometimes a wee bit more is all it takes. Of course, sometimes it does the exact opposite, but until you try we will never know.

Something like:

Min pressure 10
Max pressure 15
EPR 3 full-time

Note that it may totally ruin a nights sleep, so be prepared. Worst case, you turn it back to where it was before. Best case, we see a smoother flow rate and work from there.

[HalfAsleep]

I use Pad a Cheeks (or similar from an online artsy crafty website) to make my mask straps more comfortable. I no longer have marks on my face or a dent in the back of my head. They might be worth a try?