Author here
Great engagement!
Apologies for the sloppinnes in model names. I've been writing it at 1am in Vegas, which was 9am in London (a time my body was operating at) - I was dozing off while finishing it - but excitement about my offline experience kept be _somewhat_ going. I've fixed model naming inconsistencies.
I've updated post with some more info and responses to your comments, I hope you find it useful.