I am 41 and I am trying to get back into my trumpet playing. I high school, I played on a Bach 20C. I did well on it and my range was great. It took years for me to find out that I should have been playing on a bigger mouth piece because I have big lips. So I have gone to a 1B. My range I gone but my tone is great. As I build up my playing, I am noticing that when I single tongue, my tongue is going in between my teeth. Is this correct? I not, how do I change it. I have never been able to double or triple tongue. Thanks.