John Kerker on Seiunchin Kata technique uses

 John Kerker Clinic in Chicopee Massachusetts

          Seiunchin 1 

https://www.youtube.com/watch?v=tEsGjIgcrvw

          Seiunchin 2 

https://www.youtube.com/watch?v=EA_EyM51SLA

          Seiunchin 3 

https://www.youtube.com/watch?v=LwfT9VKRH80   

          Seiunchin 4 

https://www.youtube.com/watch?v=B9u-Bodd1Xg

          Seiunchin ending

          https://www.youtube.com/watch?v=WXONEXc0ETI