According to Johnson Creek and their 1-8 scales for their juices and what I have learned it would be like this...
Blu Disposables "classic
tobacco" or "tobacco" and also in their starter kits is a JC Original made for Blu.
This flavor is a tobacco flavor with hints of caramel and vanilla and is PG based. If you are cool with PG then go with JC Original.
The closest and almost the same in VG is the JC Red Oak Tennessee Cured and according to their scales makes just a bit more vapor.
Currently I am using the JC Red Oak Domestic... it is fine but I also miss the Blu flavor... I will be getting the Red Oak Tennessee Cured next. Hope this helps a little.