I've been thinking about this a lot lately (bored). I'm not so convinced a good pipe has to pass this test. I know both of my Petersons non system bents don't pass the test, but the pipe cleaner does go in far enough to soak up the moisture and improve the smoke. Granted, I prefer a pipe that does pass the test and goes all the way to the bowl where you can see/feel it literally touch the tobacco in there, but not entirely convinced it is absolutely necessary. Thoughts?