So I had a nice chat with Tesla this morning about adding FSD to my car this morning which shed some light on on changes to orders in general. Adding FSD at the time of delivery is not generally acceptable. Your milage may vary and while they allowed a few to do it in the beginning, it caused paperwork issues on their end so in the interest of streamlining everything, FSD/EAP should be part of your configuration or added post deliver for $2k more. It's no longer their policy to add it last minute. Again, ymmv here. Getting this info actually required him to research and call me back as he wanted to make sure to give me accurate info. On that note I asked him about adding it now as it'll push me back in the queue potentially and expose me to the new pricing if AWD and paint. This is where things got interesting. He said changes to the order won't affect pricing of other items and that while the website shows that you're being hit for all related items, it will only actually hit you for things you change. For example, I want my same config but want to add FSD. Even though the configurator says it's going to charge the extra 1k for AWD and 500 for paint that when it processes, they will roll back those to the original cost. If you change the paint color, then you would have to pay the increased price. If you're going from RWD to AWD, you'll pay the increase, etc. I did forget to ask him about the doc fee increase but even if that does hit me, I'm not going to have a fit over $200. Also, order edits do not affect your queue position nearly as much as your first config date when you gave them your $2500. Hope this helps people.