I think that no one has mentioned the thumbhole because I think of it as kind of a given that you have the thumbhole correct for any particular note before even thinking about attack, articulation, breath pressure, etc. So any tips I gave about playing high notes on the Bernolin are predicated on the thumbhole pinch being accurate (which is not to say that it is easy; it isn’t at all for some notes like high C# and F).
That said, I do think your pinching tips are excellent and definitely worth mentioning, especially for beginners.