Loud Staccato - don't squeeze!

Continuing with the idea of concentrating on the breath rather than the tongue for articulation - practice first without any tongue at all, deep and short "huh". Notice any squeezing in the lips, throat, and HANDS. Ideally, hands should always feel floppy, like just sort of hanging onto the flute. A sign of this is you can feel the vibration of the sound through the hands. I say ideally because it gets difficult during a technical passage, but we just have to keep constantly reminding ourselves.

This is part of a free sound production. 

Then when we use the tongue, experiment whether just using the very tip of the tongue barely touching the edge of the teeth is enough. If it's well-supported and backed up by the air we just practiced, it might be just enough already.