Just to resurrect this old thread, Titanic buff that I am.
Lady Patten contacted me before her book came out, regarding letters that her grandmother, Sylvia Lightoller, shared with author Walter Lord about the 2nd officer of the Titanic, Charles Lightoller.
I've put the letters on my website at
http://www.paullee.com/titanic/slightoller.html, and theres a link to a discussion on the fictitious steering blunder on the QI forum. We are promised (threatened?) that Lady Patten promises more revelations about the Titanic. I can hardly wait....
