You might consider adjusting the weights of the verticals and the dexter diagonals to match more. I see they are calligraphy-inspired, but after all, you already made a lot of adjustments that are impractical or difficult to achieve with a broad nib. That said, looking at the text samples, I don't find the broader diagonals heavily imbalanced, but some of the capitals (/M, for instance) do stand out more than the others.
The new /S is definitely too short. The top and bottom angular joins need more overshoot.
Similarly, there's something about the /P, and to a lesser extent, /B and /R, that makes them look meek and muffled among other caps. I'd consider doing something crazy to their top onstrokes, maybe adding in some slope? And maybe some advance width to /B, some weight to /P.
Otherwise, looking great! The texture is really nice. The figures have a lot of character. The stress structure of the diagonal in /7 might be something to reconsider, though.
From aforementioned, I agree TypeTogether has stunning look, and a clean one, too, but usability? – not as much. I've just tried to create an account and for the first time I thought my browser froze because I couldn't click CREATE, though it looked like I filled out all I needed. So I refreshed the site, and meticulously filled in all the fields again, only to discover why the previous trial failed – I had not selected country. So I tried to do this right that time, and I found the country list uncomfortable – lists of this kind should be searcheable comboboxes, not lists of checkboxes one needs to scroll all the way down and then aim at the right box. But I had scrolled all the way to the middle, clicked, and tried to proceed only to find out the address cannot contain non-ASCII characters, and do so in not-such-a-design-wise-stunning way (a plain text, non-html error message). So I tried to create the account for the third time, but it appeared that the account had been created, only the personal data (none of it!!) was not persisted.
I'm sorry if I'm being vicious (I tend to), or too detailed, just wanted to get through with the full experience.
No, actually, I'm not. I then tried to update the data, but whatever I tried, clicking UPDATE would just refresh the site and clean the forms, except for the email, password and name.
If the OT lookups substitute for PUA-encoded glyphs, I thought searching through the text was impaired? As aforementioned. About composites, do you mean making a reference from one glyph to another? I once thought that was possible (while, well, reverse-engineering Arial) but I now tried exporting a font containing references into OTF in FontForge and the references were gone (unreferenced) upon export. Do I need to take additional steps to export references? Or do I need to use another tool and not FF?
Once again about the word 'typo': surprisingly, my mobile dictionary (Advanced English Dictionary on Windows Phone 8.1) lists 'typo' as 'a mistake in printing resulting from mechanical failure of some kind'. Following this lead I found out that 'typo' is derived directly from 'typographical error' and some dictionaries treat it as a synonym of the original phrase, which in turn means (according to Wiktionary) 1. a mistake made while typing (caused by a slip of the fingers)—what clicked in Simon's head, the typical meaning associated with the contraction 'typo', 2. a mistake made during the process of typesetting—I think quote misuse and the likes qualify? So the original post was, if somewhat misleading, not very far from truth.