Oh, I had thought of it as an either or thing, but your way makes perfect sense and I like it much better. Hastings is totally public school enough to call people by their last names.

The Moustache is paramount,agreed. I just wasn't sure if I could get away with it, but hopefully if I lampshade it enough, it will work.

Now if I could only write the damn thing. I've figured out Hastings' and Poirot's modern backstories, but John and Hastings won't shut up and I can't get Poirot and Sherlock to work with each other. Which I suppose is in character, but not helpful to my word fairy.