What's the difference between the CE2's 3's and 4's? I have an eGo C and it came with 5 clearomizers and I bought a few more today. The label on them say "Vision Clearomizer 2.1 ohm" The ones that came in the starter kit have short wicks, and the ones I bought today have long wicks. I just bought a 1000mah twist battery and I'm just trying to get as informed about all of this as possible. I also bought a higher nic level of juice for the mornings and this former 2 pad guy has only smoked half a pack in 5 days and I couldn't be happier. I'm trying to follow the "Don't understock or underspend" rule so I won't be in a situation where everything fails at once, but I'm still feeling like I don't have enough info to make informed decisions. Any help is greatly appreciated, and Thanks in advance!