We often experience strikes while we are in a good posture and relaxed (in class). To learn to deliver better strikes and clean our attachment to strikes stand in a position you know is not good for you on purpose. For example change the angle of the hip or tense up the lower or upper body before you are hit on purpose and than handle the strike using your breath and letting the movement travel through you and out. Another example for this is to receive and deliver strikes standing on one leg or while a third partner is moving or chocking you. Do this to learn yourselves and to develop better awareness and motion and remember it is very easy to harm yourself and each other. Always see the human in the other and you will gain a lot of insight in this and keep your calm when it is needed.