I tried the Hangsen yesterday and am vaping it now.
Very classic RY4 as you would expect from one of the industry leaders. It is well mixed, you taste all three elements with the tobacco just a little more out in front than the caramel or vanilla. Very easy vape though, and I think it will be a little better after a couple of weeks.
The Heavenly Tobacco and ECBlend RY4 with extra flavor are reorders, and those two are still my favorite RY4s. Heavenly Tobacco is Halo Tribeca light, a distinct and soothing blend that has a fantastic aftertaste. The ECBlend RY4 has the caramel out front, so since I like sweeter vapes outside of my tobacco vapes, I like this one as a mixer. Heavenly Tobacco/ECBlend RY4 at 50/50 is the first vape I've ever tried that I can pound all day and not think about other juices.
Gonna try the same thing with the Hangsen once it steeps a little longer. I'll get into the Mad 4 next week, just by the smell of it I can tell it's gonna need to sit a bit and I think it will be somewhat to the sweet side.