Anyone uses these? I know a lot of you guys are required to carry a canister, but us folks on the east coast are still exempted, for the most part. I was wondering if these bags can reduce the range in which bears can smell the food? It seem pointless to me if you're going to cook at the campsite because, well, bear going sniff you out 20 some miles away if he downrange. In the Smokies we got bear cables, but in primitive wilderness of Western Carolina, such amenity don't exist. So, I thought those sack can help reduce other critters from climbing on my ropes, and reduce the range in which the bear can sniff it out if it hanging up on a limb. Thoughts?