P&W #515 in a 1998 smooth straight Butz-Choquin Bistro 1501 pot with a black vulcanite stem.
Will: you sound like a former cigarette smoker. A pipe needs to puffed in moderation for best taste and easier wear on your pipe. Try slowing your puffing cadence. And yes, Peterson pipes take a while to break in, but when that happens, you'll get good smokes.