* Add 1 Part 2780 Black Technic, Pin with Short Friction Ridges (Extra)
* Change {12 to 11} Part Black 2780 Technic, Pin with Short Friction Ridges
Comments from Submitter:
There are only x11 of these per instructions:
x1 on page 30 step 21
x2 on page 36 step 3
x2 on page 43 step 1
x2 on page 43 step 8
x4 on page 45 step 12
I am guessing the 12th one was an extra part, as this piece is often included as an extra and there are none listed in the extra section