Here is something that I don't usually do. This is a copy/past from the "Bent or Straigt?" string. I think it fits here just as well. As a hint to getting the biggest/best bang for your buck.
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It is one test that I perform before purchasing any pipe (now). I simply pass a pipe cleaner down the air hole. If it does not progress smoothly I reject the pipe, and begin browsing again. For example: my Petersons (one bent, one straight); if I had attempted to pass a pipe cleaner through them, I wouldn't purchase them now. But, live and learn. My Cavicchi's every one is drilled beautifully (bent and straight), no problem with the cleaner test on any I have ever seen. That's one difference between a $50 to $80 pipe and a $250 to $350+ pipe that is quantifiable.
However: I will not say that mid and lower end pipes will always fail this test. It is however one test that I recommend. It is worth the effort when looking for a pipe, bent or straight."
I hope this helps a little.
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Raf66 this is one area where higher end pipes tend to be superior. I have 5 or 6 high end bent pipes, all - through which I can easily pass pipe cleaners, and I also have several mid-range pipes that I cannot and some I can.I hate that I can't get a pipe cleaner straight through really any of my bents whilst smoking,
It is one test that I perform before purchasing any pipe (now). I simply pass a pipe cleaner down the air hole. If it does not progress smoothly I reject the pipe, and begin browsing again. For example: my Petersons (one bent, one straight); if I had attempted to pass a pipe cleaner through them, I wouldn't purchase them now. But, live and learn. My Cavicchi's every one is drilled beautifully (bent and straight), no problem with the cleaner test on any I have ever seen. That's one difference between a $50 to $80 pipe and a $250 to $350+ pipe that is quantifiable.
However: I will not say that mid and lower end pipes will always fail this test. It is however one test that I recommend. It is worth the effort when looking for a pipe, bent or straight."
I hope this helps a little.