In order to become the nessesary height Jerome, in a crucified position, has additional bone graphed into his legs and gains 2 inches. Jerome sheds his blood so Vincent can place it in his false fingertip. Vincent scrubs his whole body to rid himself of any old loose skin. It is interesting to note that both the names Vincent and Jerome are the names of very famous Christian saints. A few more tricks include wearing a heart beat recording during exercise time so his imperfect real heart won't be detected.
Transformation always brings about a new heart.
He now pursues his goal of traveling into space with the Gattaca Aerospace Corporation. However, a week before his flight, a Gattaca mission director is murdered and an unnoticed eyelash singles out Vincent, but not Jerome, as a suspect. He tells her. She can't understand how an Invalid can physically achieve a Valid's physical endurance. He has her feel his heart.