@ToolmanTexas - Another great place that carries already blended concentrates is One Stop DIY shop. In addition to carrying many name brand single flavorings (by TFAm CAP, FA, etc.), they also have their own proprietary One Stop Flavors and One Stop Blends. You just mix usually about 8-10% (or higher to suit your own tastes) of a single 1 of them...with your own PG, VG, and nic base. IMO, and many on here, they're wonderful!
My personal favorites are their Baked Cinnamon Roll, Lucky Shot, Lotta Latte, and Pink Lemonade. I also like the Tennessee Whiskey, Blue Raspberry Slush, Olde Tyme Rootbeer, and Strawberry Milk. Have already bought the Licorice Torpedoes and Wild Cherrylicious, but haven't tried them yet.
An ADV for me, is made with equal parts of their Lucky Shot + Lotta Latte. I only use 6% of each one and it's wonderful.
It doesn't get any better than the Lucky Shot and Lotta Latte (which I like to call the Lucky Latte). Thanks to you for letting me know about that combo!
I use it at 10% each, but I like strong flavors.