Installing the tuners. I finally figured out why 3 of them had green dot stickers. They're just a bit shorter than the others. I'll use them for the thinner strings because they're very....
streamlined...

You can see the extra 3/32 of post between the two in focus here
And the thick strings might pop off the top. Good thing they're locking tuners.
There is a post inside the post that's threaded. On the left the post is up, middle is halfway etc.. It's got a dome top and it rises on its thread as you dial the knob on the back.