Pinkeye II recipe

I purchased a bottle of Danzka grapefruit infused vodka, along with some other flavors, in the bargain bin at my local liquor store (1/2 off). So now I had all this flavored vodka but the problem was that I had no idea what to do with it. I found good recipes for most flavors but the grapefruit... that was the most difficult to figure out. I found a couple of grapefruit cocktail recipes online. One used Squirt, another used Grenadine and Sprite, another using Sweet & Sour... but none satisfied me. This recipe is a combination of the best ingredients I tried with those other drinks and, to my astonishment, has become one of my favorite drinks of all time! The sour from the grapefruit and sweet from the grenadine fuse perfectly in such a way that you can barely taste the alcohol so watch out; this drink will fuck you up fairly quickly. The Squirt is already grapefruit flavored and naturally compliments the vodka. Try it. You're gonna love it! I'm certain this would taste even better with Absolute Ruby Red.