Canonic form:
-canonic back ocho
Variations in Basic: 
-back ocho cross resolution
-back ocho from displacement
-back ocho from dual crusada 
-back ocho leader back ocho 
-back ocho leader forw ocho 
-back ocho right hesitation
-back ocho,parallel resolution 
-back ocho turning left 
-back ocho two ways 
-back ocho walk cross lead side
Variations in Intermed.:
-back ocho to crus by displ 
-back ocho to voleo in LOD
Variations in Adv.Interm.:
-none
Technique:
-none         

What is a back ocho? Back ocho is a sequence of two back steps with pivots made on the external foot.