I like all 3..... 11 is the best shape, maybe with 13 shading..... Think of this on the chest of the tshirt.... and bust out like cam newton touchdown Superman celebration where he pretends to open his shirt to see the Superman logo below..... I want to do that at the end of the race!
Maybe put a bend in the DrStu part (arched slightly) to go with a puffed out chest...
Just trying some visuals to help...