bunk flavor concentrates

[phisbell]

Has any one ever received flavor concentrates that were no good? Specifically fruit flavors from wizard labs in the last couple of months.
I started mixing a year ago and the fruit flavors that wizard labs sent me were not very strong compared to what i had been getting through Vapor Shots. The few that seemed OK just suddenly loose flavor at 8 to 10 days. I still have the same recipes with Vapor shots concentrates that are more than a month old and still taste them so i do not believe it is vapor tongue or flavor fatigue.
Has this happened to any one else?
I scoured this site and all any one ever says is it is vapor tongue or flavor fatigue.
I have quite a lot of flavors from Wizard Labs because of the sale and half of them are fruit flavors.
I taste test on an eleaf istick with just a drip atty for truest flavor.

 

[Warpigs]

My flavor buds are inconsistant. I can take a hit of some nice Blue Moon Ice Cream and hardly get any taste from it (35% flavor shot added). Then try my RY-4 and it seems I got my taste back because it tastes good. It's seems to be an on/off thing for me I guess. But I still enjoy vaping alot.

 

[phisbell]

I made a peach couple months ago from a recipe made with VS flavor concentrates that has been reliable over the months. made the same recipe with TFA concentrate from wizard labs and a little bit into day 8 the wizard labs flavor just disappeared and the VS flavor is still good.
it is not flavor fatigue or vapor tongue.