"The research included analysis on how the referees blew games of rugby, from scrummaging to the dark arts at the breakdown and the offside line. But it went much deeper than that,' an excerpt of Miracle Men published by SA Rugby Magazine says.
"The level of detail in the refereeing reports included personality traits, all with the hope of finding an edge.
"The Springboks would role play at team meetings and at training sessions, practising what they would say to the match officials with the research in mind.
"The report compiled on Garces, for example, revealed that he responded well to being complimented on his physical appearance.
"If the match was fast-paced, the Boks would make a point of praising Garces on his condition and his ability to keep up with the players, hoping to rub him up the right way."
The book also reveals the Springboks would play 'good cop, bad cop'', with Garces where Duane Vermeulen would raise concerns with the referee before captain Siya Kolisi would step in.