Sometimes complex blends, that is blends with three or more tobaccos with distinctive flavors, seem to unfold better in pipes with wide bowls, maybe because you have more different leaf burning at once and it mixes better. Whereas, a Va/Per blend sometimes seems to go better in smaller pipes to focus those flavors. One of my best pairings is with the burley variant Tabac Manil Semois (Belgium leaf) in a large, deep billiard bowl that just seems to bring up the nuances of that single leaf in a unique way.
Take it or leave it, but a metaphor might be an orchestra often sounds better in a larger space where the dimensions of the sounds can resonate, and often it sounds best from midway to the back of the house for the best mix, whereas a string quartet may give its best quality in a smaller room.