I have mixed feelings about the Vivi Nova.  One one hand, I love the ease of use - You fill it up once and it lasts for hours of chain vaping.  The screw-in tube is great - I'd love to see some tanks built like this.  On the other hand, I don't get good flavor from them.  In the beginning, it's just weak - no taste.  As I go past half a tank or after a refill, the juice seems to turn to sludge.  Draw is heavy and it tastes burnt.  I'm using 50/50 juice although some juices seem to do better than others.
Any suggestions?
	
		
			
		
		
	
			
			Any suggestions?