It definitely improves in flavor after a week. But mine simply is a deep fog.  Here is a photo of the S-04 yeast from the Wayners on the left, and some Hefeweitzen yeast on the right.
Even the yeast cake liquid is murky, that's almost 2 weeks sitting.
		 
	
				
			Even the yeast cake liquid is murky, that's almost 2 weeks sitting.
 
         
                 
				 
 
		
 
 
		
 
 
		 
 
		 
 
		
 
 
		 
 
		 
 
		 
			 
						 
						