For all the posts you see in the archives that go something like this, "I have always used method XYZ on my trips and never had a problem, therefore method XYZ is best"; keep in mind that for many of those people, their method of bear proofing could have been putting their food in a paper bag. They never had a problem because a bear in camp is a relative rare circumstance (more or less so depending on location) and for reasons totally unrelated to how they store their food, a bear never visited.