I have to apologize for getting carried away on impulse and not taking 'before' pics. I'll try and find a shot of a
Dr. Grabow Grand Duke somewhere and post it. Essentially is was a very, very thick-walled bowl that was about 3/16" taller than what I cut down to. Grinding off the unattractive 'carving' (really, it was just gouged in a fairly artless pattern) slimmed the sides of the bowl down some, but as I had plenty to work with it's still a good thickness and stays nice and cool in the hand. The dark stain totally hid the natural grain, which, while not a premium example of grain, is still much more pleasing to my eye. Also, the imperfections (possibly where the root grew around some gravel in the soil, make the pipe feel more natural and individual to me.
I wouldn't do this to a pipe whose lines I admired. I now have four smaller-bowl pipes as well as a half dozen medium bowl pipes so I'm well supplied with rotation candidates. But I had such a good time on this first attempt at modification that I will grab the next big ugly pipe I come across in my treasure hunting and have another go.