LOL Quite a title. A few days ago I got my first Iken V2 cartos. Prior to getting then I always vaped my VS Tampa on my buzz and my Expresso on one of my egos. After experimenting with the V2's I ending up with the Tampa on an eGo minus drip tip and the Expresso on my Buzz with Iken drip tip. As I love my Expresso I sometimes tend to hit it pretty heavy which I did yesterday and ended up with quite sensitive lips. Hot coffee-Yow!! Looking at the Iken driptips I realized they have quite a pronounced edge right where your lips sit. I switched to my pretty green Delrin tip and no more probelms.