Testing low cross point on the back (static): 
https://www.instagram.com/p/BwB0skKhoG3

Testing top point on the back (static):
https://www.instagram.com/p/BwC-FXqA3Cz

Testing low cross point on the back (dynamic, Factor XNUMX, steel chain):
https://www.instagram.com/p/Bxh24Ahie5L