Having trouble with F30

[Godlybeast]

Good day!
I am finding that the headgear on my AirFit f30 full face mask tends to have the overhead strap slide forward towards my forehead while I sleep and this causes leaks. I have attempted to tighten it to prevent this but doesn’t seem to be helping
I have the same issue with my old Quattro FX full face mask as well.
Any suggestions to help with this? I was even tempted to sew in another Velcro strap going from the overhead to the rear strap portion using elastic strips set to exactly the necessary length to keep it comfortable.

Thanks

[chunkyfrog]

DIY mask modifications are often the only way many of us can wear these "S&M contraptions".
This creativity is lovingly referred to as LAB RATTING.
Feel free to channel your inner rodent and customize away!

[flightco]

I gave up and returned it within the 30 days. Having gone back to the F10, I have gone from liking it to loving it. Sleeping all night again

Thanks for the reply