The dual modulated increases in fluid pressures are considered completed when {HEAD ~ each} of {TAIL ~ the modulated fluid pressures} substantially stops increasing upon initially reaching its respective peak fluid pressure 
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The dual modulated increases in fluid pressures are considered completed when { HEAD ~ each } of { TAIL ~ the modulated fluid pressures } substantially stops increasing upon initially reaching its respective peak fluid pressure
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH