Hi recently bought a Wit-Colour Ultra 9100 3.3m with two DX5 heads option.  I am not really convinced to use the wit-colour inks because they can only guaranty it outdoors for 7months.  I need to know what ink i can use that will last atleast a year and also easy on the heads and display good colour output.  Please help.
	
		
			
		
		
	
			
			 
				