Hi Clementine, I am another devotee of the P10 but my problem was that the 'ladies' strap was way too big, and I am sure those that know me would not say I had a small head.
I had to do some sewing and take it in on both side to make it a nice snug fig.
What I would do if I had your problem would be to cut off the back felt where the hard part ends and sew on elastic to each end and make it a suitable fit for myself.
I think most of us have had to adjust the headband in someway, whether it has been the male or female one.
Very bad design from ResMed.
Only you are able to decide on you pillows, judging by comfort and leaks.
I think so far your leaks are fairly good.
What are your AHI's every night, are they usually below 5?
Just remember to take one day at a time.
love this mask, other than the straps...I am using the ladies straps, it still is not really tight enough, my "small/narrow head" lol. I am looking at modifying it, really too bad there is no adjustment...
I have struggled with this for months, and finally put a piece on the back to make it adjustable. I see differences each night in my AHI but it always is below 2, so I am not worried about it anymore. The leaks are within limits that are normal, so I am just going with it, and will keep checks on the leaks.
Actually I think the left nostril is a medium, and the right nostril is a large. I wonder if I could special order......... Nah, probably not.