One of the aspects that I like about Walnut so well is the cut. It is the perfect cut for smokability and burn rate which greatly enhances the outstanding high grade flavor of Walnut. I like PA when I want a fast smoke. The fine crimp cut burns very fast but it still has a nice flavor of it's own.
I had a great bowl of Abington that got me thinking about this last night. It's normally sort of a chunky, natural cut and this particular tin has some small flakes formed in it. The flavor is so substantial I wondered what it would taste like as a fine shag cut.
Certain twists definitely change if you rub them out - anything with a center different from the outside, for example, will change quite a bit if you rub it out, becaue you wind up making a more even mixture, rather than finding a hit of one thing then a hit of another as you burn.
I have never really found that rubbing out or folding flakes has made a huge dif in flavor, but you certainly hear people speak differently of Mac Baren Mixture and Mac Baren Mixture Flake, and Erinmore Mix and Erinmore Flake....