Actually the Old forms(koryu kata) were especially to train the sequences of strikes or rubs
PP are rarely used alone so a sequence could be grab wrist and apply pressure to a point there, strike a point on the upper arm ( believe inside of biceps) followed by strike to beck of neck and finished by strike somewhere to face (have to forgive me is 5 years ago I did the seminar from Patrick McCarthy)
and still this would not neccesary knock him out, maybe just stun your oponent for a short while
One would train the seperate sequences by means of tegumi drills ( 2 man excercise)
Forms were made into stylistic excercises instead of tools to learn PP, because of this they lost all value for fighting
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