i dont know if it lets you do 2 supers, perhaps, being honest i wasnt aware of the segments on step until you mentioned it
the only thing that im sure at the moment is that Step can be cancelled into (attack -> Step), eliminating some recovery time, and that Run can be cancelled from (Run -> attack or High Jump), allowing a character to move in
DATE MASAMUNE FTW!!!
stun meter, ala 3S