Is a screen not needed for a pipe?

[lateralus]

Glass pipes have a small hole. Just fill hole up with a piece of bud and load the rest.
Once the pipe is broke in the bud will stay in bowl... Although I have a friend that insist on keeping his bowl clean from burnt flavors.
~peace~

It's true. I don't clean glass pieces. After awhile, they build up enough resin so you're never dry. That hole gets smaller and smaller, and the need for a screen lessens and lessens.