Not sure what tobacco would be best, but as others have said, sometimes certain blends sing in certain shapes. My stubby pot I used to smoke VA's out of but when I had a bowl of GLPease Jack Knife PLug cut to a shag consistency, it was no going back. It now is reserved for that blend only. I also have some other pipes dedicated to Black Frigate, Sunset Harbor Flake, Stratford, Key Largo, and FIllmore. I have pipes dedicated to a certain family of blends as well. I know some don't do it, but I have enough pipes where I can.