Precise control of {HEAD ~ the current} during {TAIL ~ 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 
Precise control of { HEAD ~ the current } during { TAIL ~ 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
OTH OTH OTH 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