The NUB...

[TedG]

Here's a photo of the 642 internals, and the position of the NUB for anyone that wondered where it was located. I removed the NUB from my 642 to de-activate the lock mechanism.

http://i70.photobucket.com/albums/i90/TedG954/NUBcopy.jpg

[Warp]

Like this?

http://www.youtube.com/watch?v=RVPYgohVCNM&list=FLqJ1GBFZ5Al8&index=1