I'm forward jaw player and I have a lot of trouble with it. When I try to go above staff I stick my chin to front and if I go higher I stick it even more out, when this happens I feel like I'm slightly choking my throat with my tongue. Thus I can't go higher. About year ago I was trying to push my chin back and it helped me a bit with my breathing. I could more comfortable hit the higher register. After that I've unfortunatelly undergone ingual hernioplasty and can't play for about 4 months. Now I back with my forward jaw setting and troubles are back. I thinking about change the setting from foraward jaw as it helped me earlier, but my teacher thinks it's not that good idea. What do you thing? Should I pracctice with my regular forward jaw settings or try to change it?