Since all cartomizers are made in the same secret lab..lol but have different formulas depending on how much you are willing to
buy, or what your agreement with them is, you will find lots of differences between cartos.
I know people will tell you they are all the same..but I did
shop around before settling here..for a reason. V4L is just plain good and has the best customer service anywhere.
But do check out the 2 sections I gave you..you will find many many vendors out there. Some have better prices, old stock, different stock and higher prices. They also may take 3 days or 3 weeks to ship.
I just like a place that is friendly, consistant and stands 4 square behind their product and me.