Yeah it does feel like it's hitting the throat. I have tried to move the straps forward, essentially to cup around my chin, but it's a little awkward since there's two of them. Do you layer one on top of the other (feels like I'm getting garroted even more this way) or do you keep them side by side?
If you've tried them both, do you prefer the Knightsbridge over a simple "looping" type strap? Such as this:
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Regarding the N30i vs p10: do you feel that the type of nasal mask makes that big a difference? The other poster talked about how the p10 could sometimes get clogged, but that doesn't seem to be an issue for me. What motivated you to make the switch? I'm reasonably happy with the p10's fit, but not sure why the different mask would give you more air. Does this have to do with the size of the nasal pillows?