If Ursack comes up with something that works, NPS and USFS would support it. They've gone through a bunch of different designs and one lawsuit (which they lost). The photo above shows the problems the sack has. It's not doctored or arranged. It makes no difference how or where you tie it. That is very typical of how bear scattered garbage from a sack (ursack or stuff sack) looks. I've seen thousands (literally).
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If Ursack comes up with something that works, will NPS and USFS actually test it? After 5 years of not testing and a lawsuit, they finally did resume testing - using Grizzly bears with and without the bag tied off correctly (just throwing the bag on the ground). The only Grizzly in California is on the state flag, but I guess the testing is meant for other parts of the country as well. Testing results and a decision is pending.
George, can you clarify your post please. You're equating an Ursack to "thousands" of conventional fabric stuff sacks that are not bear resistant whatsoever. How many Ursacks have you personally seen fail? Were these Ursack incidents reported to the company? Clearly the NPS and USFS work very closely with the hard canister companies and clearly those types can be compromised as well.
Not saying there's some grand conspiracy out there, but it sure looks to me like there's a regulatory bias against Ursack. Over the years I've owned and sold Garcias, still have 2 Bear Vaults and 2 white Ursacks. You could say I'm "armed for bear" but I want the lightest solution possible and I'm willing to follow directions to tie it off correctly.