Other important aspects are bunkai (self-defense applications) done with full force and acceleration. In this case, one must strike at the air instead of their partner to be sure they are striking with considerable energy and also to be sure that their training partner shows up again for training. In years past, when I trained at the Juko Kai national yudansha clinics, I typically sought out a training partner - R. Smith, who blocked as hard as I did, and hit just as hard and fast as I did - it helped build technique, muscle memory and confidence.
And when ever you train in your martial arts and your instructor tells you to do 10 repetitions and he or she does not stop you after you've done the given number of reputations, think of this as a bonus, and do as many as you can until you are told to stop or move on. If you don't, you will never be an outstanding martial artists.