So...you guys had me worried that TFA would run out of RY4 Double Flavor so add another 4oz to the stash. LOL 
@JL0187 - much thanks for your ideas. I've done the one drop AP thing but it's never been my intention to clone Tribeca but rather use RY4 Double Flavor as a base kinda mix for some experimentation. Halo has a new juice called Southern Classic which has a unique Madagascar Vanilla tone which is really the Bourbon and it's yummy. So I also orderd the Vanilla (Bourbon) from TFA and can't wait to experiment. If anyone has actually used the Vanilla/Bourbon/Madagascar in a mix I would love to learn more.
@JL0187 - much thanks for your ideas. I've done the one drop AP thing but it's never been my intention to clone Tribeca but rather use RY4 Double Flavor as a base kinda mix for some experimentation. Halo has a new juice called Southern Classic which has a unique Madagascar Vanilla tone which is really the Bourbon and it's yummy. So I also orderd the Vanilla (Bourbon) from TFA and can't wait to experiment. If anyone has actually used the Vanilla/Bourbon/Madagascar in a mix I would love to learn more.