I have this most recent batch of BWB's RY4 as well. Right now, all I'm getting is tobacco, a strong nutty flavor, very slight hints of vanilla and caramel, with slight fruity undertones I can't quite explain (I'm thinking I might have accidentally got some of my Melonbacco in that carto, because I don't get the fruitiness when I drip it). I like it, but it definitely needs some steeping. The only other RY4 I've had is from Prime Vaping, and I'm loving it! It's very heavy on the vanilla and caramel. I think the BWB will definitely get better with aging.
As far as the Malty, the reason you're not getting any throat hit (I had to research this one to figure it out) is because Malty and Malty Toffee (the one I tried) are the only two BWB flavors that are 30/70 PG/VG, as opposed to their usual 70/30 PG/VG. You'll get more vapor from it and less throat hit. I actually didn't enjoy the Malty Toffee at all at first. It didn't really taste like anything to me. After a couple weeks of steeping, it now has a nice flavor, but the throat hit still isn't there; again, because of the high VG content.
If you like waffles, try their Waffle flavor. I'm SO hooked on it. It doesn't just taste like syrup (what I was expecting). It tastes like real waffles with real maple syrup and even a hint of real butter. No steeping required. Simply amazing!