Based on the advice of some of you, I asked my DME to switch my Resmed Airsense 10 Autoset to the Resmed Airsense 10 Autoset for Her. While doing the exchange, the technician seemed to think I was doing real well and that the "For Her" machine would not make a difference.
Three days in, my AHI index had gone from an average of 2 to .02 and made believers of both the technician and the doctor (apparently he told him how much better results were). I am really happy and impressed with both of these gentlemen and highly recommend them to anyone in the Northern Virginia area. During my follow-up appointment, I was shown how they now have in stock the "For Her" machine and the technician acknowledged that he was proven wrong by the results.
Regarding masks, I have settled on the Philips Respironics Wisp and have a standard Resmed F10 on standby for when allergy season begins just in case I need to breath through my mouth.
Resmed F10 = Standby (good seal, not as comfortable as a Nasal mask)
Resmed Airfit P10: The one I reluctantly had to break up with! I love how unobtrusive it is, but I experience large leaks which then cause poor sleep and AHI to rise.
Resmed Airfit N10: Farewell, au revoir, auf wiedersehen, goodbye.... Great headgear, mask noisy. Not worth the cost.
Thank you all for your suggestions along my way!