"By the time you have the capacity, and the opportunity, to train ships in such a way, is it still worthwhile to be using CSM barges?"
And the first thing that came to my mind was 2000kt of CSMs filling a Devnull barge... A fleet of 50 or so of those should get at least a few missiles through.  

 
		
	
		
		
		
		
		
		
			
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				The Unpronounceable Krsqk
"Well, sir, at the moment my left processor doesn't know what my right is doing." - 
Freefall