[Neil S]

[ QUOTE ]
How do you vibrate your thumb??

My method sucks and can't beat old NES olympic games (Track and Field, Gold Medal Challenge), put the controller down and wail on it with the thumb

[/ QUOTE ]The trick is to find how far the button must be pressed down to make contact, then just slightly move your thumb back and forth, letting the button move just past that point in either direction, I thin.

Just shake, don't push.