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Old March 23rd, 2010, 12:13 AM
uglybiker's Avatar
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Quantum Bubblenautics,PhD

Join Date: Jan 2008
Location: The Dread Pyramid of Itzilichlitlichlitzl
Posts: 7,366
Default Re: To poke, or not to poke?

If your foil is tight and you have enough or make big enough holes around the edge, you won't need to poke one in the middle. The biggest reason the foil gets sucked down is because there's not enough airflow from the other holes.
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