It’s so simple!  Why do some people want to be in the blind spot and not working off the shoulder where the response is?  “A” starts movement but if pressure is not steady “B” kicks in and they stop!  Every animal has a different and variable flight zone.    I could talk all day on just this one illustration.

This along with the reverse parallel triangle and how to turn the lead is all you really need to know to handle cattle successfully and exhibit low stress.  To get a butt shot, the co-handler steps ahead to gain attention, and “A” lets go and moves to the “B” position at precisely the right time.  Then the co-handler takes an “A” position going the other way. The handlers need to dance with each other.  Only one leads at a time!  It’s like shooting fish in a barrel.