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