Good advice guys.  I did all of the above, (I cut my tube on a band saw that I slowed way down) and used lubrication on the SS while flaring.  I would then throw a plug on the end I just flared and stick it in a bucket of water.  Stick the blow gun on the other end.  No bubbles, no troubles! 
 
Darren
		 
		
		
		
		
		
		
		
		
	
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