There are studies that state that nicotine alone is not addictive. It's only when compounded with other substances that make nicotine more addictive. There are also studies that say smoking is just a Palov's Classical conditioning and as such the 'habit of inhaling smoke/vapour" combined with the reward of nicotine is what makes us unable to stop.
Ergo, If you keep up the habit (of inhaling something) but don't reward yourself with nicotine, I can guess that you might be less addicted to smoking. Give it a try, It wouldn't hurt!
But do note that if you have been smoking heavily (16mg ++ and for too long) dropping to 0% nic might not be able to help much. So just try to experiment what is right for you