{HEAD ~ Precise control} of {TAIL ~ the current} during linear motion of the reciprocating mechanism is not necessary during reversal due to the nature of the servo system which saturates during most of the rebound interval 
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{ HEAD ~ Precise control } of { TAIL ~ the current } during linear motion of the reciprocating mechanism is not necessary during reversal due to the nature of the servo system which saturates during most of the rebound interval
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH