I run four ATI 39 watt Blue Plus.  They supplement my three 14K halides.  If I had the ATI hybrid fixture I would probably do the same as I'm doing now.  Use the LEDs for growth spectrum and T5s for looks (fluorescent pop).   
 
Having said that, I would have thought that the blue LEDs would give you that fluorescent pop as well. 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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