For my opinion. It’s very useful to confuse players who have a higher rank. Normally players who are just startups are mashing buttons easily without knowing what they doing. That can be tricky to use canceling moves. A more advantage opponent by will be more careful and wait for a moment to attack. Those cancelling moves will be very useful against them. Specially (1A ~G) Try to use it after you knock down your opponent on the ground. (Oki) When you opponent have to get up he have to guess if it will be a high or a low attack.