in the au, jack starts training for turbo dueling much earlier at his own insistence, and goodwin is

in the au, jack starts training for turbo dueling much earlier at his own insistence, and goodwin is happy to oblige. he gets his first runner and suit around age 15, and is a natural and daredevil right off the bat.

and unfortunately for goodwin, he has found himself strangely fond of jack by this point 
(click for captions)