When looking at the 2020 CS Build Guide, it shows the following in the design guide for a 1955 Precision Bass build:
WIDTH AT NUT:
☐ BASE MODEL NUT WIDTH*
☐ 1.650"
☐ 1.685”
☐ 1.6875"
The (*) references the: *For base model specifications see page 17
Page 17 has nothing with regards to nut...