Actually with the Yogi complete breath (wedge breathing) you fill from the bottom up and you lower your shoulders once you start to release. You only raise the shoulders to get the last portion of the inhalation into your upper lungs. Check out the book “The Science of Breath” and read chapter 8. It’s free on the internet. Maynard practiced breathing this way and taught it to Bobby Shew. I read that Shew said he couldn’t hit a double C until he started breathing this way. I too would like to see what Greg says about this.