I'm trying to figure out what some of the flavorings used in tobacco production are, and how they're applied. Both the casing, and the top-note. Nothing necessarily specific, but some basic guidelines are what I'm looking for. I've read some things that give general terms, but nothing that might keep me from wasting 20 pounds of tobacco in trial and error. I'm curious about the differences between American style aromatics that are mild and wet/goopy, and something like Royal Yacht that's dry in the tin, very robust and smokes much better. I'm also curious about the sort of casings that are used in tobaccos like Escudo, Macbaren's Navy flake, etc. I know the latter has scents/flavors added, but the former is just cased (I think).
No, I'm not going into tobacco production, except for myself in a very limited way.