Another thing: Don´t be afraid to try different ways of doing double tonguing; so you can feel what works better for you. Ex: Tu-Cu; Du-gu; Ta-ca, etc (For example, some people prefer to think it like Ta-ca instead of Tu-cu, 'cause they feel that the "A" helps them to open the throat. But at the end, you´ll have to do it the way it works better for you :-)

Some people have their jaws more pronounced than the others, for example; and they'll have to attack with their tongue a bit more at the back of the mouth than others to compensate.

There's no absolute truth; one must learn as much as one can from the teachers, but at the end it's you the one who will have to choose what works better for you. :-)

I've been playing since I was 12 (now i´m 29) :-). Thanks a lot for you kind words; if it really inspired you, i'm truly honored.

I'm sure your double tonguing will be great in time. It's difficult to give advice by internet, but something i can tell you, and you probably already heard, is to keep the tongue as relaxed as possible while doing it. Then it's a matter of practice :-)

you've inpspired me, with your Poulenc sonata's, how long have you been playing for? and how can i get my double tonguing better? cus yours is really good. just wow! lol :)