I still have a bit of trouble with mask leak from time to time because I am a mouth breather and I am using the ResMed nasal pillows. I tried a full face mask but it was worse. I have taken to using a piece of micropore tape to help keep my mouth closed . I tried a chin strap when I did a mask test ,but it was not very successful at all.
I have taken screenshots of some of the data taken by sleepyhead ,so hopefully I will get some feedback on if I need to use more pressure or whatever I might need to do. Thank you .