Get some carter hall, and even if you don't like it, smoke 5 bowls through your pipe, and it will remove the ghost, and leave a good cake over your old one. I bought a 1970's yellow bole centura yesterday for $10 unsmoked at an antique store, and after just 3 bowls of Carter Hall, already had a nice cake started. I have never seen a pipe break in so quickly. Alreay tasting good now with 6 bowls only through her. Usually takes at least 50 bowls before I like a pipe's flavour. For what it's worth, I don't bother with partial bowls to break in. I just smoke slow and keep the pipe cool, as normal. I do pack a little tight at first to keep the pipe cooler so as to not over heat and burn the wood before cake is built up.