Thank you for another wonderful video. This technique, I feel, gives a warmer, rounder tone to the voice, which I really like. I always had a voice which was described as "pleasant" by others, but it was quiet, I really struggled to be heard, but since I started learning from your videos, it has been a different story and I feel I consistently get better and better. It is really a treasure of knowledge.
Physiologically, sliding back and down would translate into pulling the stomach in to the extreme almost, while taking a breath in. Based on this, the slinging back and down is achieved and the signer will find full classical vocal resonance I, sometimes, need a more explicit language because I can definitely imagine slinging back and down, but that could be a hand sliding on the table back and then down