A postscript to my review of River Bottom Fog Sauce KillR Y4 that was posted on Tuesday night:
I've been vaping KillR Y4 quite happily this evening for more than an hour, and that says something, since I don't normally vape any one juice for more than about 20 minutes at a stretch before changing juices. An hour means that I'm enjoying it a lot.
30 RY4s are listed as Dessert/Sweet on the RY4 Category Groups page, and if I were to rank just those sweeter RY4s, KillR Y4 would be right near the top, and might even be a contender for #1 among Dessert/Sweet RY4s.
KillR Y4 has three things going for it: First, it uses natural tobacco extract, which beats the heck out of most synthetic tobacco flavorings; second, it's a very tasty Dessert RY4, and third, it's just a darn good sweet juice in general. I'd put KillR Y4 right alongside GoodLifeVapor's Deadly Sin, one of my all-time favorite "mystery blend" sweet juices, and a juice that I've vaped nearly every day for the past year. It's too soon for me to claim that KillR Y4 is as delicious as Deadly Sin---that will depend on KillR Y4's long-term staying power, as yet unproven---but it's definitely got my attention.
The sweetness in KillR Y4 is soft and pleasing---expansive rather than intense---probably because the sweet flavorings (I have it on good authority that those are caramel, vanilla, and a little honey) were "cased" with the actual tobacco (meaning sprayed onto the leaves during curing). Those flavors were then infused into the tobacco by the extraction process itself---in this case a simple-soak maceration. In other words, when the juice was mixed, separate flavorings weren't used for the tobacco, caramel, and vanilla elements. Instead, KillR Y4 was made with only a single flavoring extract, which amounts to an all-in-one RY4 flavoring.
So, I'm raising my grade for KillR Y4 to a B+. Another couple evenings like this, and it might even deserve an A-.