Mostly, I haven't had a problem with pre-carbonized bowls. I'm always delighted when a bowl isn't coated in advance;
the unfinished bowls break in nicely and give a sort of purist satisfaction. The only pipe that gave me any complaint was
a Parker cheerywood that I bought about a year ago that seemed to give up some of that bowl coating every time I ran a
pipe cleaner through it for a dozen or more smokes. The Parker is a good pipe, but the bowl coating shouldn't have
drooled down into the shank airway and lasted for months. These little quality points count. Kudos to Chacom,
Salvenelli when they don't coat, Ser Jacopo, and others that skip the bowl blacking. Thank you so much to them.