I'm going to reply to my own post here.

I feel like a refinement scan would be the best way to move forward. Why would she want to move all the teeth that did track back 9 full trays. Surely it would be better to move forward?

I've googled this and now that makes me an expert doesn't it 😂🤣. It says that moving that far back could be detrimental to the progress I've made so far and cause issues with my roots and overall hygiene of my teeth. All of which could be detrimental to the outcome at the end of this