He is clever, and obviously would not trade if he were not the gainer.
Was going to do a double gainer with a half twist, but the toilet diving appears to have been canceled.
British Dictionary definitions for gainer
a person or thing that gains
Also called full gainer. a type of dive in which the diver leaves the board facing forward and completes a full backward somersault to enter the water feet first with his back to the diving board Compare half gainer