Is Clark flying really the end of SV?  I mean can't he do just a few more things there before puting on the costume.  I mean I always saw it as him putting the costume on or the making of the costume and him moving to Metropolis as the final step or if the go the S:TM route him in the Fortress with the costume.  Thats how I saw him saying good bye to SV and moving to Superman not when he learns how to fly that it is over.
				
			 
				 
						 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		