To name a few:

• Special forces squad constructing and learning eidetic visual language tailored to muscular control. One guy "translates" his high knife-throwing skills into it, another one "reads" the description, goes through a short "comprehension" stage with flu-like symptoms, starts throwing knives almost as masterfully as the first guy.
• People breezing through Schulte Tables (e.g. https://drafterleo.github.io/schulte/) and similar exercises on hard mode (10x10, 4 colours, counting in different directions for each etc.)
• Almost perfectly transferring handwriting skills from a primary hand to a secondary hand in the scope of a single sub-hour meditation. Quick skill acquisition in general. Anecdotally, my psychonetics practice does help me to acquire skills faster but not a magnitude faster in the most cases (hard to measure baseline tho).
• Doing a range of normal (including mental) activities under a debilitating dose of ketamine. Anecdotally, my practice improved the navigation of altered states dramatically but I'd not say I'm capable of overcoming physiology much.

The book you linked in the question (http://deconcentration-of-attention.com/psychonetics.html) is the most comprehensive resource in English I've seen. It also covers basic exercises really well, I can help you with translating more advanced ones once you hit the ceiling.

There is also some attempt to generalise and further develop Ostrom's ideas: https://www.prosocial.world