Good luck! I am fairly certain you'll be able to get some flavor out of it. Keep in mind also, some atomizers just seem to do well with some liquids more than others, and yes, I am talking to you Siren V2. I love it dearly but it doesn't care for "Subtle" flavors very much.
You washed at cleaned it thoroughly right? If you didn't you may be tasting machine oil which is not the greatest of tastes.
Anna