I was thinking about my embouchure and I noticed that I do something with my tongue that I've never realized before; I'm not sure if its normal or not. When I am playing, primarily in the low and middle registers, the tip of my tongue sits between my lower lip and teeth. My tongue isn't hurt at all by my teeth, it barely touches, and my lip doesn't come in contact with my teeth except for when I move my tongue out of the way since I have to bite a bit in the upper register to help it out. Is it bad that I use my tongue to stabilize my embouchure?