Instant Fix #3 is: The 7 things that you might be doing that stop you from getting a clear tone on the flute!
I'm pretty sure this is my favourite Instant Fix so far.
Because it's just so TO THE POINT! 7 things to adjust, and off you go - you should start to get a better sound right away. Woohoo!
My suggestion: Watch the video and see if there is at least ONE in there that you haven't thought about before, and try it out.