Rick asks above..."Is this the real Iceman?!?! (Obviously not Albert Collins, but is it the real Larry the Iceman?)"
uh, accept no substitute. I'm the real deal...and once I wore a shirt cooler than Rick's (at SPAH in the good ol' daze), but that was definitely by pure luck.
Anyways, to those interested in ramping up their % of tongue blocking, know yee that all your bends can be created with your tongue on the harp...(except, for me, the high end blow bends, although others can do it TB). Bends are controlled by the middle/back section of the tongue, which arcs upwards gently to redirect the airflow. The tip of the tongue is not engaged, so there is no problem if it is resting on the harmonica. If you can bend using single note technique but have trouble with TB bends, I would suggest re-examining your bending technique. It may need a slight adjustment.