Please see the link included in my post #7
Yes, sorry. I did miss that link. Thanks for point it out, as it is a very good article.
It is exactly what we did at the LDS to fit my mask. But even that article does not speak to any specific fit requirements for the nose. Maybe it's a non-issue for 99% of the people out there. Although I wouldn't consider my nose large, I suppose it isn't small either. It might just be that I live with the issue, which isn't absolutely terrible since I can clear it if I pull it down while blowing.
I'll be taking the mask back tomorrow night to see what the shop can do.