This year was a relatively light travel year for me as I only got on planes 120 times...each time carrying my Z1. Had I had to carry that third bag for my System One I would have left it home...which I did for a few years, but that's just me.
I'm not trying to convince anyone to use the Z1, just recounting my experience as a frequent traveler with it and even with its shortcomings the last year with it has been my best therapy year ever and I owe that to the Z1. And now the Z1 Auto is even more comfortable so I'm a happy camper.
And part of the credit for about the last 8 months of comfort goes to discovering the F&P Eson nasal mask back in April when I had another sleep study and the tech wanted me to try the Eson instead of the Respironcs Comfort Gel mask I had been using. The Eson is a super comfortable nasal mask.