* Change {2 to 4} Part Blue 4274 Technic, Pin 1/2
* Change {10 to 12} Part Light Bluish Gray 4073 Plate, Round 1 x 1
* Change {4 to 2} Part Blue 4274 Technic, Pin 1/2 (Extra)
* Change {4 to 2} Part Light Bluish Gray 4073 Plate, Round 1 x 1 (Extra)
Comments from Submitter:
Two more round plates and pins should be regular parts according to the official parts list (instructions & online) and part count. However, they are not required to build the set.