[pianotech] Points of adjustment

[Paul Tizzard]

Hi,

This morning I was looking at the PTG site and came across the Vertical and
Grand Action diagrams. The vertical diagram has a caption stating that their
are 25 points of adjustment per note and the Grand has 35.
I tried to identify them, however I came up a little short on both counts. 
Could you list them?

Regards,
Paul Tizzard
Piano Technician
Cape Town