Hmmm, sounds worth a shot. Is it a fruity or more mild vape?
RY4 in general is not fruity in any way, no matter who you buy it from.
It is mostly a mix of tobacco, caramel, and vanilla, but it differs greatly depending on where you get it.
Dekang RY4 is much heavier on tobacco flavor than most I've tried.
So if that is what you're looking for, there you go.
I've tried many (what I would call) RY4 mixes from a lot of vendors, even if they don't call them RY4 blends.
They can range all over the board, from very sweet to not sweet at all.
The best tasting one I've ever tried is Tribeca from Halo, but it is just way too sweet for me to use, so I don't buy it anymore.
Another good one that is less sweet, but still quite sweet, is Vermillion River Kentucky Premium.
Now if we are going even less sweet, there is the Vaperite VR4.
This juice won an award for best RY4 and it is very much a tobacco flavor, with just hints of other flavors.