Years ago, I use to be a HUGE fan of Pink Spot Vapors Cotton Candy, it was one of my all time favorites and buys every month...this stuff was SPOT ON! Then all of a sudden I started receiving cotton candy from them that didn't taste the same anymore (it just tasted like burnt sugar), it was totally different. I questioned them on it and they insisted that they hadn't changed anything with the recipe but I was never really sold on that response, I flat out don't believe it.
After trying a few more orders of it, I had the same issues with it and I scratched it off my list. I don't even use PSV anymore because their pricing is so inflated (to cover the cost of their retail stores) that I refuse to give them my business any longer. I will say that I think in general, they have some of the best juice in the industry (at least from all the vendors that I have tried), I give them that but their pricing is just flat out insane!
Back in the days when most of us were using ego batteries with tiny little drip tip atomizers or tiny little tanks with 2ohm coils in them, juice lasted longer and I only needed a few bottles to get me through the month (30ML bottles) so I could afford their stuff then. But now, we're all buying 100 and 120 ML bottles for our latest gear and that pricing structure would absolutely bankrupt me for the month. No way am I spending $240 dollars a month on 3 or 4 bottles of 120ML liquid, sorry!
But getting back to your question, that was the only cotton candy I ever liked from anyone, and I tried many. They also had (maybe still do) a grape cotton candy that was just as good as their traditional cotton candy, I really liked that one too (but insist they changed their recipe for that as well). I mean you can't convince me that after using a certain flavor(s) for well over a year, a flavor(s) that I know down to the "T" how it's supposed to taste from you, and then all of a sudden it's different and you say you didn't change anything. I'm just not buying that.
Good luck though!