Everything I've read about the Seedman concentrate says that it's pretty weak, and needs higher percentages than other tobaccos. I think .5% isn't going to do much (might not even be enough to notice it).
Just a note on the Seedman's flavorings.
To get the disclaimer out of the way... Seedman's flavoring are not FDA approved food flavorings.
They are traditional flavor enhancers used in the tobacco industry to impart certain notes on tobacco when it cures.
For eliquid usage, they are not recommended as a main or primary flavoring.
They are usually used in eliquid recipes as a contributory flavoring or enhancer to other primary flavorings to give them a slightly different flavor profile... to "tweak" them.
I
wouldn't recommend using any of the Seedman's flavorings by themselves.
I
would recommend adding a little Seedman's flavoring to a recipe based on one of the TPA/Capella/Flavour Art tobacco flavorings to give them a little flavor boost in one direction or another.
I can really only speak to the ones I've tried myself.
The Seedman's Commercial has a flavor profile that's reminiscent of that smell from a freshly opened pack of cigarettes.
It's a light flavor that's hard to put your finger on. It's that first smell that hits your nose when you pull out the little foil paper after unwrapping a pack. I find it a nice addition to almost any tobacco recipe.
The Virginia Fired Cured has a very dark, heavy flavor. Definitely not good on it's own but mixed in small ratios to a main tobacco flavoring can really give it a punch. This one can be an aquired taste like scotch whiskey or stinky cheese. Used right it can make a recipe bold and flavorful... but that first time you taste it, especially if you use too much, can make you hurl.
The English Tobacco has a very bright, light, almost citrus-like/pineapple-like character that adds some higher aromatic notes to a basic tobacco recipe... although I find it can conflict with some heavier flavorings in a way I don't like.
I find it also goes well with some dessert flavorings, cheescake being one of them... but that could be just my own personal taste.
The Captain Black is in a league all it's own. It really adds that pipe smoke quality to it that any former pipe smoker would recognize. Definitely not for everyone, but for those of us who've enjoyed puffing a longstem, it'll bring back memories. I can't take it for too long or as an all-day vape, but I really like mixing it up from time to time when I'm in the mood for something completely different.
In the end, doing DIY eliquids is like cooking in your kitchen.
Some flavorings are meant to be used heavily in your recipes like garlic, basil, onions... others (like Seedman's) are meant to be used like salt... just enough to notice, but not what you want your dish to taste like..
