Yes.  The 2.0 ohm cartos are great on a standard Riva or Ego battery.  That is what I use.  
About the long drags, that is normal for me. My normal drag is 5 or 6 seconds if I am using a carto or if I am dripping. So maybe what you think is a long drag is just normal for you and you are not used to it yet. Just a thought.
	
		
			
		
		
	
			
			About the long drags, that is normal for me. My normal drag is 5 or 6 seconds if I am using a carto or if I am dripping. So maybe what you think is a long drag is just normal for you and you are not used to it yet. Just a thought.