Check out this fascinating video of Sarah Willis, hornist with the Berlin Philharmonic, playing while having an MRI. The double and triple tonguing starts around 6:30.
Link to Tuning CD
~ The body you live in is the same body in which you perform.
~ Any improvment is improvement.
~ Everything works for somebody and nothing works for everyone. So, try it and see if it works for you.
~ Feedback is not the same as judgement. The first is just information. The second has an emotional component.