Guys....below is a link to my rudder TE. It came out pretty straight but there are some rises between the rivets. It's not much and within the 1/10" mentioned in the book, but want to hear form you guys.
https://www.dropbox.com/s/napk4p8skoulyjv/Rudder TE riveted_A.JPG?m=
https://www.dropbox.com/s/napk4p8skoulyjv/Rudder TE riveted_A.JPG?m=