Hi, I'm a sophomore in high school and recently received and audition packet that has forced me to learn how to double tongue. I have tried before but was really bad at it so I gave up..... now that I have to learn how I've run into a couple problems. When I tongue with the back of my tongue it isn't crisp and comes out sounding really bad. I can also barely play quarter notes using the back of m tongue. I need some advice on how to make to tonguing crisper and be able to play faster. Any advice would be greatly appreciated!!! Thanks in advance.