I've never been able to eat just one Swedish Fish at a time. This was modeled after "red" Swedish Fish.
TPA Swedish Gummy: This flavor can be an outright pain in the ass. It's very accurate to it's name, but it carries a vicious throat hit if you use it much higher than 1.5-2% At 2% in this mix it started imparting some unwanted harshness, so I dialed it back to 1.5% in the final recipe to help keep things smooth, while still imparting some sweet gummy flavor.
CAP Jelly Candy: A bit of a sleeper flavor, you don't taste this very much in the mix. It's intended purpose is to lend some body to the Swedish Gummy, which I think it does well. Standalone this flavor is very similar to the inside part of a jelly bean.
TPA Watermelon Candy: A bit of a weaker watermelon flavor, this helps keep the strawberry balanced from it's usual syrupy self, while still contributing to the overall sweet "red" flavor of the swedish fish.
TFA Sweetener: What's a little candy with some sugar, eh? Earlier versions included more, or less sweetener. At 1% it started overpowering the flavor a bit, but at .5% it just wasn't quite there so I landed at .75% to try to catch the best balance between sweet candy and gross syrup.