SS stuff
It took me a long time to realize this, but the nasal sound of Brett Manning's cry is not actually a nasal sound, but a twanging of the epiglottis funnel. Learning the difference between making a nasal sound and the twanging sound has helped me in my practicing - I kept wondering what I was doing wrong and why I kept breaking sometimes, and I think this is why. There is much posted on these boards about twanging, particularly by CunoDante, so reading lots of posts (musiclife's thread is a really swell one) on this board should help.