KBV's ry4 is really good imo. It doesn't have a strong harsh tobacco bite. Its got a rich flavor with the right tobacco/caramel ratio so that neither are overpowering the other too much, and just enough vanilla to make it nice and creamy. Very smooth taste, maybe just a touch on the sweet side, but I love it. I got it in 70pg/30vg with no extra flavor shot. Its good right out of the mail, but the flavors meld a lot better after only 3 days of steeping, and the vanilla comes out a lot more at that point.