For this configuration hook 60 can rest on {TAIL ~ the lower protruding edge} eliminating the need for cocking {HEAD ~ hole} 24 
For this configuration hook 60 can rest on { TAIL ~ the lower protruding edge } eliminating the need for cocking { HEAD ~ hole } 24
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH