{TAIL ~ Pathway} 88 is defined by upper surface 90 of stop 72 and a parallel wall section 92 beneath {HEAD ~ cover plate} 78 
{ TAIL ~ Pathway } 88 is defined by upper surface 90 of stop 72 and a parallel wall section 92 beneath { HEAD ~ cover plate } 78
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH