I've never been a huge fan of the majority of tobacco tasting juice. None of them seem to come even close to replicating the major brands. This might be a suggestion, but more of what I'm doing. I bought some absolute tobacco extract online. I mix that into a non-flavored juice and it seems to fit my taste better, it's also closer to what a cigarette really taste like. Also some people have tried putting a little of commericial tobacco flavoring in it. I haven't tried that yet, but just ordered some. Go to the Tips and Tricks forum, youll see lots of info on it. Here's the site
2009 Exotic Plant and Garden Seed Catalog
just google tobacco absolute for the extract. If your not the type to make things on your own, Totally Wicked juice is one of the best suppliers for liquid.