I'd say try Cornell and Diehl's Winchester. Red Virginia and unsweetened black cavendish. All tobacco has a casing. If it didn't, it would be bitter. Most of the natural tasting tobacco is cased with liquorice. Not for flavor, but as a neutralizer, it makes the tobacco taste natural. Anyway, try Prince Albert, Pegasus and Granger too. I've been really enjoying Winchester the last month. I never thought I'd like a virginia forward blend because it tends to rip my tongue apart. But Winchester tastes so smooth, the retrohale is pleasant and the room note is as advertised, "classic old pipe fragrance". My youngest son said it reminds him of an old time pub, or an old library with pipe smokers looking through books.