All good advice here. As a relative newcomer myself, Greg recognised immediately in my first or second lesson that I was using my throat to control the air flow and not “letting go”. I have struggled to get my modified K tonguing sorted out with the new lower jaw position. Greg asked me to simply inhale and then stop the air with my tongue sticking out between my lips. The simplicity of this action means I feel all the air pile up at the tip of the tongue with the throat hopefully open. Not pretty but it really works to allow that very simple free feeling of keeping the throat open. I use this now with the tissue and largo exercises.