My strength rankings of flavorings, from strongest to weakest, of the 5 manufacturers whose flavorings I've used. I also include the typical percentages that I use.
I've only listed those manufacturers whose flavorings I've actually used.
Obviously there are exceptions within the lines offered by various manufacturers. For example, TFA Tobacco Absolute is the strongest flavoring EVER, with half a percent being the most I'll use. But, in general:
1. Vaping Zone: 1% to 3%
2. FlavourArt: 5% to 10%
3. TFA (The Flavor Apprentice): 7% to 15%
4. Signature (said by everyone to be the same as TFA): 10% to 20%
5. MBV (Mount Baker Vapor): 15% to 25%
When I need a sweetener, which is rare, I use NOW brand liquid stevia at 3% to 10%.