Double and triple tonguing help

There are a lot of different syllabeles you can use. Try de ge. and de de ge for triple touguing. de is pronounced with a soft e. ge is pronounced with a hard g and soft e. and then just practice on which ever syllable works best for you. You can also practice by pulling your tuning slide out and just tonguing into your lead pipe. you can hear the imperfections much easier. Hope this helps.

The "ka" attack often throws the note out of tune, or comes a little slower. This will get better with practice, but only if you can stop it early on. One way to do this is to always use "doo goo" (or "too koo") instead of just de ge because this keeps the space in your mouth relatively the same size (the unevenness in tone is because your mouth and throat and soft pallette, etc. are changing shape, and therefore the tone, "oo" is a good sound to help keep your mouth the same shape). When you've master "too koo", and are going for high speeds, you might find that your tongue trips over itself a lot less if you switch up the vowel ("too koo ta ka ti ki taw gaw too koo ta ka ti ki taw gaw", for example). When you tonue repeats the same thing over and over, it is more likely to trip over itself. Making a longer stream lessens the chance of slipping up when going at fast speeds. Of course, this can only be done after you're comfortable enough with keeping your mouth the same shape that you can switch vowel sounds and not change the pitch.