I totally agree with reprisal's comment. The Boge LR or 2.0's work great with the Riva 510 which is an excellent PV. If you're still trying to figure out what flavors you like, stay away from the Mega cartos. They take 2.5 mls of juice vs. about 1 ml. for the standard carto size and if you don't like the flavor you've just wasted all that juice. You can rinse out cartos with hot water and dry them at 200 degrees in the oven for an hour (search ECF for more info if you're interested) to save money too. But the CCV carto deal is great too. I never had any luck at all with atty's or dripping. Cartos are easier and more convenient. Good luck and don't be disappointed. I weaned myself off the cigs over a couple months and still allow myself one once in a while only to find out how disgusting they taste. Good luck to all of you who are quitting.