Hi there cgod. Yes, this IS the second time and there will be many more as I use the 'events' in O'Brian's books as hooks to discuss the reality of the era. For instance: music as mentioned in the books and what that actually meant for real people of the time - in this instance Royal Naval personnel.
As to his authenticity, I think he himself admitted that the character of Aubrey was based on Lord Cochrane.
I have read Alexander Kent and some Forester. After O'Brian I prefer Kent but I must admit I admire O'Brian for his style.
These episodes are only meant as a diversion and addition to the episodes we post to our main website - for me it is the French Revolution. They allow small digressions on topics the main narrative would normally miss. In no way are they meant to publicise O'Brian or even state that he is the best writer, although I personally believe he is.
I do not know much about Marryat...do you highly recommend him?
Regards
Mark