Our students must never punch thin air or make touch-contact when playing attacker or defender.
We insist upon physical contact with all strikes.
Unless you actually hit your partner in training, how can you possibly determine how much power to use?
Being hit is not a brutal, macho endeavour.
Students are good-natured about it and only deliver enough power to indicate the potency of the strike.
When practicing with each other, they never strike to cause injury or harm
Over time, everyone gets used to being hit. It is simply part of the training.