If you look at the cover of "Become the Arrow" by Byron Ferguson, you will notice that he uses the anchor you describe, with the feather touching his upper lip.
I took Rick's class, and use the feather against my nose anchor. I didn't have a particularly hard time adapting to it, but when I decided to start shooting left-handed as well as right-handed, I found it hard to get the feather against my nose shooting left-handed. I eventually got it, but it wasn't as natural to me as when shooting right-handed.
You will enjoy taking Rick's class, if you get the opportunity. My impression is that Rick would like to teach people to shoot the way he shoots, but is amenable if his student has a strong inclination to another style of shooting. An example of this is 3 under, which Rick prefers, but he will also teach people who like to shoot split-fingers.