Try reducing the Coconut or removing it completely. You can add Vannilla Swirl or Vanilla bean ice cream to smooth out the mix and give it a nice mouth feel. This is my suggestion going on the flavours you have on the list, and what I would do myself so only my personal opinion. The Vanilla will ad a little sweet taste if you let it steep but if you want it even sweeter add some Cotton Candy, but not too much as it will increase the "grainy scratchy taste" Let me know how it works out!Not sweet enough and has almost a grainy feel in my mouth