There have been mentions of the duck lip appearance as people have gotten further in their expansion process.

I'm not sure if what I'm experiencing is the same exact thing, as I know people are speculating on the cause being tipping of teeth. I know that my own tongue placement for a long time was too far back, and I now focus on making sure the tip of my tongue rests closer to the front teeth, but still behind the incisive papilla.

My own sensation is that, as I mew, my lips pout of their own accord, and that there's actually more space between my lips and my front teeth. It's just how they're resting now, as if my front and bottom lips are pushing themselves forward because of the way they close together. It's not really noticeable in photos, it's more of a sensation. I had first felt it during listening to binaural beats without mewing. Now I'm experiencing it while mewing, without listening to binaural beats.

I was just wondering if anyone else can describe the duck lip sensation they have. Also, I seem to remember someone mentioning that this is a sign of progress, and that within a few months the maxilla should move forward enough to neutralize the duck lip appearance. Is that anyone else's experience?