I don't know what you mean, Kyman. I'm not getting the mental image of it. Care to explain again?
The technique I used: What I was doing previously was when my tongue went into the nasopharynx, it would take the uvula with it. I don't know if this happens for everyone. I couldn't figure out a way to keep the uvula down. It would pull a lot on the soft palate, stretching it quite a bit but at the same time holding me back.
So possibly, (this is to anyone) if you aren't flipping the uvula up when you go into the passageway, try it and see if it loosens the soft palate for you.
The other day (this past weekend) I was driving around and I was looking in the rear view mirror at my soft palate while I did different things, like breathing out or humming. (it was a four hour drive...I got a little bored!) I saw that the uvula came down more into the oropharynx when breathing out of the mouth...so I tried to bring the tongue above the soft palate while breathing out and humming, and the uvula stayed down easily.
So a few days after that, practicing it the new way each day, I noticed I could reach much further. I explored the opposite side of the nasal septum, and found the roof of that...then just this morning I reached the top of the septum and found that it connects to the roof of the opposite side. I certainly have more exploring to do...
Hopefully the uvula thing helps someone out.