In this video I demonstrate Kassendi San which is the first kata that we teach in Ryukyu Udundi.
You can use this as a reference if you have just begun to learn this kata or you can use this to learn the kata if you haven't yet had the opportunity.
As you practice try to apply the things that you already know about striking-
Keep your head up and your posture tall
Hit before you land
Point the ball of your foot when kicking
Be sure that your feet are silent
Extend your punches and turn your body
A common problem is that people sometimes twist their wrist too soon when punching, causing the elbow to lift, making the punch inaccurate and signaling that a punch is coming. Be sure to watch for this... twist at the end of your punch.
A good way to practice is to carefully perform the kata paying strict attention to one of these details at a time. For instance, do the kata focussing only on posture throughout the entire kata. Next do the kata insuring that you are completing each punch before you land your foot. Go through the entire list, and finally, try to do the kata with all of these details in mind. With anything you practice, slow is better!
You can do this type of practice in 15 minutes once you have memorized the form. Be patient and have fun!
Here is a slowish version of Kassendi Yon for those of you just learning it.