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If it is too berry-ish; then I would look at cutting the berries with more subtle fruits (at low percentages) like apple, pear, or dragon fruit. This could help to dilute the berry-forwardness; while maintaining the overall "fruitiness" of the profile. This would be similar in effect to what juice companies do. Look at any major label juice like Welsh's, Ocean Spray, or Tree Top, and you will see they often use multiple fruits in a single fruit flavor label. You might see that a "Grape" juice is made with Apple, Pear, and Grape juices.
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And this is why I think some end up Buying Brand after Brand of some Flavoring. Constantly Chasing a Flavor that they think/want to come out of a Single Bottle of concentrate.
When if Fact, the Flavor they are Seeing is made up of Multiple Flavorings. With one or two being Dominate. But others filling In the muddy Gaps.