What's missing, is more information from you.
What are you trying to accomplish? It looks like you are going for a "Grape BubbleGum" (like Bubbalicious). Am I correct? If so, menthol won't get ya there! The above suggestion could work.
If you are just trying for something Grape flavored and feel its missing something, well then, if *you* like menthol, then add some Menthol.
If you are just looking for a suggestion to improve your grape recipe, well since I hate grape flavors, I'd say substitute out the Grape for Watermelon, add Mango and coconut.
Or swap out the Grape, use Double Dutch
twister (FW) and add some Bavarian cream instead of using BubbleGum or Blue Cotton candy. Mix both those at 50/50 and you'll love it!
But those are just my suggestions. Provide more info and what You are tying to accomplish and you might get some more helpful tips (other than what I have already shared, of course!).
