I revised the recipe slightly to 8% Hibiscus and 5% Fuji Apple.
I love FTA's Hibiscus, although it does need a high percentage. However, the flavor is the same as I'm used to from the tea I was drinking as a teen. The Tea contained the leaves of the flowers only. The best Tea I ever drank. It's more like a fruity flavor.
I tried CAP's Hibiscus. However, it didn't taste like what I'm used to.
Regarding the bitter wizard, I first tried my Sour Apple recipe with the Sour flavor only. However, it seemed it was missing some more kick in the sour department. Therefore, I added a small amount of the bitter wizard, which gave me more of the sour I was looking for. IMO, the bitter wizard adds a bitter, mainly on the exhale.