Okay, I received Boge cartomizers for my Joye Ego (510 cartomizers). My dumb question is that there is a little white plastic thing on top with a hole in it that you remove to put the juice in. Do you replace this little white thing and suck through it?? I thought maybe i needed a drip tip so i was reading about those and they said that the drip tip replaces the cartridge. So now im confused. What do i use for a mouthpiece and if i use a drip tip then do i have to take out the cartridge and just drip right onto the atty part or can you not do that on a cartomizer?? arghh!