Hi Stan, 
 
It is the very first cut made on drawing the sabre from the scabbard. 
 
Suspension in these regions typically aligns and allows for a very simple fast and effective draw in an arc that I have found usually crosses the throat. 
 
I think Wagner offers some good diagrams on this on horseback? 
 
 
Gav
		 
		
		
		
		
		
		
		
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