I know you don't want to hear this, but, I was in the same place a few months ago and figured out how to lower the leaks with the F10.
You profile indicates that you are running in CPAP mode with a pressure of 15. Set the panel to mask fit test and follow these instructions.
It takes time. The first step is to stop tightening the straps so tight. The F10 works by inflating the thin silicone seal around the edge next to your face. IN order to work, the mask has to be loose enough to allow that seal to inflate.
Loosen the straps a lot. Lay on your back and turn on the machine. Put the mask on and slowly tighten the straps one at a time, in a circle to tighten all 4 about 1/8 inch. Wait, breath, lift the mask a little and let it settle back down. Then if it leaks, do it again - another 1/8 inch all around.
Keep doing that until it floats, you will feel the seal inflate. Keep slowly tightening until it stops leaking when . you lying still, and not moving and on your back. If you get it to the point the hard plastic is resting on your nose bridge then the top it too tight - loosen the top straps a 1/4 inch or so and tighten the lower straps a little - that will rock the mask away from your bridge. You will find a point where the seal inflates and if you are lying still on your back it will not leak. If you blink, it can leak for a second, if you twitch your mouth it can leak for a moment - don't worry about those. Just relax and lay still.
Now once it is not leaking the next step is to turn your head to one side and/or the other. If it starts to leak, go back to facing up and tighten the straps a little - maybe 1/8 inch each. Do not rush this, there is a very small range of adjustments where it will work.
Repeat the above until your can turn your head side to side and not cause a leak. If you have tightened the straps to the point the hard plastic is hitting your face before the leaks have stopped - you have gone too far, loosen them and try again. Once you can pass the side to side test, go to sleep and see how you numbers look in the morning - be mostly concerned with the leak rate.
Follow that routine for a few weeks - it took me about a month and a half (6 weeks) to get so that I get very few major leaks at a pressure of 20.
I am not a Medical professional and I don't play one on the internet.
Started CPAP Therapy April 5, 2016
I'd Rather Be Sleeping