Finer cut tobaccos seem to smoke better in smaller bowls, and smaller bowls set off
full strength tobaccos for starters, until you see how you like them. I started with
Nightcap in a big bowl, from a just-opened tin, and it was a nicotine kick, but with
a little age on the open tin, it mellowed out enough to enjoy in the big bowl. Bigger
pieces of tobacco (and of course you can rub out tobacco to make the pieces smaller)
go better in a broader if not bigger bowl. I have a prince that does nicely with bigger
pieces. Black cavendish that tastes somewhat bland and blah in a small bowl can expand
nicely in a great big bowl, extra large; you don't have to pack it as tight, it's not so
gooey. Also, I think individual pipes focus the air flow through narrower or wider
airways, and this changes how tobacco smokes, and gives better or less good results
with different leaf. So you get better with your own pipes than you will be advising others
(as I am doing here) on how things will work in their pipes. But you really do learn
differences as you go along. That's one advantage for pipe smokers who either have fewer
pipes or smoke only a limited number of those they have. They know how the different ones
react with different tobaccos -- blends and un-blended. Some great tobaccos come across
a little bitey and harsh, then in another pipe, pure bliss. Not to mention your own moods
and inclinations. But there definitely is a difference between depth, width, and degree of
carbon (breaking in) on various pipes. I don't think I keep this in mind, but just develop
better instincts about which pipe will favor which tobacco. Learning your own pipes trumps
any general guidelines or rules every time, I would say.