Yes, but as swedishfish pointed out, this isn't true for the average person. On the other hand it seems like the nic concentrations people vape don't really seem to correlate consistently to how much they smoked.
Just my 2 beginners cents
No, they really don't, that's for sure. That's why it's so hard when you start to recommend a mg strength. Different levels of addiction. What you start with may not be what you stay with. My mother needed 36 to quit cigs but and once she did that immediately dropped down once she was off cigs. Now she's on 6. Light cigarette smokers aren't less addicted than regular brand smokers, both work on receptors in your brain the same way.