I posted this on another thread but I think it will get lost there. I made a video for a member here who asked me for more information on bending notes by "voicing" them lower by using your throat and tongue. No embouchure at all. I posted the video on my blog. I hope it is helpful to any of you that might be interested in this.
http://www.neffmusic.com/blog/2011/04/bending-notes-on-the-saxophone/
Hope it helps. If you have questions or insights please feel free to let me know. Steve