I realize we all have or own set of dial twiddlers, but this one, OP, seems an easy speed bump to jump, no? My longest period of eyeball to pipe contact happens when I’m picking out a pipe before smoking, Thereafter I just see the rim when lighting. My hand does all the ogling then on, and there are few materials out there that offer more to hand ogle than a blasted morta pipe. If the grain really bugs you throw a leather coozy on it and pretend it’s a vintage vintage piece.
The material is different enough to warrant the effort, imo.