Can you figure out what this does?

[John Delacour]

At 23:22 -0500 2/2/08, Jon Page wrote:

>It allows the weight of the hammer and wippen to keep the rear of 
>the key down. Without it, the front of the key goes down to the 
>degree that the hammer rail is raised thus sacrificing dip.
>--
>Attachment converted: Mac Mini:LM Comp.jpg (JPEG/«IC») (001C7F81)

Yes, but it also changes the key/hammer ratio, by the look of it, so 
that you don't break the jack when you play with the half-blow pedal 
down.  The result will be that the touch is roughly twice as light.

JD