I then tried the Resmed Mirage swift II nasal pillow, which seemed to get the AHI down to 12-13 (yeah, not good but moving lower!). Experimented with medium and large nasal pillow sizes finding the large worked best spite pillow edges rubbing under my nose. But I found that I am burping air out my mouth periodically when machine sends out a high pressure shot.
I found on line InnoMed/RespCare hybrid mask and Resmed Mirage Liberty Mask Frame that combines the nasal pillow and mouth piece. This would seem to be the best solution for avoiding nose bridge discomfort and gets air into my nose/mouth. There may be other vendors with similar masks but I have not googled further for them.
Is this nasal + mouth a good solution? Is it effective? Comfort level compared to traditional masks? How do I size it as the mirage comes in various frame and pillow sizes and does not appear to have interchangeable nasal pieces (if I buy its mine). I know the saying "it depends".