Interesting, thanks for the comment. Unfortunately the post you linked is not about the book Longitude, and the blog the author links to for people who want to "discover more about what really took place" is a 404.

I'll have to do more research, but at first glance I don't see any criticism (yet?) on Wikipedia: https://en.wikipedia.org/wiki/Longitude_(book).

I'd like to see a breakdown of the facts vs. what Sobel wrote. I read the book because I'm a mechanical watch enthusiast, and I was not disappointed in any of the descriptions of the Harrison timepieces or what made them work. I plan to go see them next time I'm in London.

I still recommend the book, especially to watch enthusiasts.