This is very situational and maybe already known(?) but there can be frames after a Wall Stun where G is the only recognized input, here's some some examples of how it works in practice: You can see not even crouching is a valid input. But because G is the only recognized input the same OS used after Tech Roll works here too. The Wall Stun is the same regardless of distance but Lau's 6PP has too much recovery so it needs to cause the Wall Stun later in the move's animation. This is the same for all moves.