Often it's better to wait until opponent overextends, with defense.
if such attack is diverted, or defeated in other way, we have advantage, as it usually puts opponent off-balance in a way.
if we have speed advantage we can switch guard and wait for proper moment to defend this way, preparing for a moves combination even (for example: by calming Mind and observing, planning, perhaps more).
therefore, extra speed is never wasted if we have experience.
i have this untrained yet.