> I didn’t realize how much that could throw things off until I saw an example where the object started moving in a strange way when it hit that point.

Would feel off, because why change the person? And even if it's intented, then I'd say it's not formal to do in an assignement.

Also the point about default LLM settings not doing that is a good point.

I use to work at AWS (Professional Services) and there are a few different writing styles depending on what your audience was. I learned how to write in the different “house styles” before LLMs were a thing. So I know when something doesn’t sound right.

I use LLMs all of the time to write. I’m 99% certain that no one can tell the difference between my writing 100% without an LLM to my writing with one