Yes I have a S9 now. Someone here kindly sent s link so that I could download the clinical manual and get into the appropriate menus without making a mess of things.
My issue isn't with the mask but about once a week I end up sleeping with my mouth open for a while. When I wake up my mouth is thoroughly dried out and that makes me a bit growly. That the CPAP puts out more pressure to counter act this makes no sense at all.
I'm anticipating an interesting conversation with the clinician when I go get my new CPAP. The two times that they have set it up they made some stupid mistakes. The first time setup the CPAP wasn't set for auto pressure and would just blow at 17lbs all night long after the ramp up. The second time they set it up the auto pressure was enabled but the max pressure was set at 20. That was rather uncomfortable as well. When I got into the menu I set the lowest pressure right down to 4 and I would set it lower if I could. I set the max pressure at 14 which is considerably more comfortable. Like I say it'll be an interesting conversation.