What is the story Borden tells in Section 4, Part 2 about how Olive Wescombe was hired, and how is it different than the story given earlier?

Borden states that the official version of how Olive was hired was presented earlier, but the truth was she nearly made a fool of him. Borden states that his previous assistant, Georgina, was not present during Olive's interview, but Tommy was there. Borden said the standard tricks were measured, the majority of the interview took place on the couch.