Applying {HEAD ~ a slight downward pressure} on the squeegee support causes {TAIL ~ the rubber edge} to press against the flat surface of the crystal wafer 
causes
Applying { HEAD ~ a slight downward pressure } on the squeegee support causes { TAIL ~ the rubber edge } to press against the flat surface of the crystal wafer
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH