One rule is to not use complicated techniques unless they are necessary to achieve your goal. First, use simple movements, and if they don't work, then introduce the more complex ones.
Bruce LeeThe athlete who is building muscles though weight training should be very sure to work adequately on speed and flexibility at the same time. In combat, without the prior attributes, a strong man will be like the bull with its colossal strength futilely pursuing the matador or like a low-geared truck chasing a rabbit.
Bruce Lee