No, I substitute some flavor brands for others. I set my goal of finding 7 or so ADV mixes that I like. I have found these and 4-5 more. Now I'm just looking for others that are better/similar than what I like or new ones that I can add to my ADV mixes for different varieties of flavor tastes.In other words if the recipe calls for 3-5 flavors, do you try and use all flavorings from the same company? or not?
When I was just beginning, I almost always stuck to the exact brand and percentages recommend in a recipe. After time, I found that my happy spot often differed from the original.
One suggestion, tobaccos are what they are. I found it's best to stick with these mixes when starting out in order to get into DIY and be moderately successful.