Not accurate, I am 177 and confident that I can achieve a maximum of 9 cms with quad to enhance my appearance and safely engage in gym activities without risking long-term harm due to the tibia/femur ratio. By the way, today a 180cm girl I encountered in the club remarked that I am too short and indicated that if I were taller, she would immediately be interested in me 🙂 she was a perfect 10/10.