[pct-l] Bear cannister idea

[jeffmoorehead1 at cox.net (Jeff Moorehead)]

The shape and, more importantly, the size of the currently marketed 
cannisters are supposed to make it difficult for a black bear to gain any 
purchase whatsoever with it's jaws. Otherwise, maybe it could crush the 
material if it worked at it long enough. Is a 7" diameter adequate?

If these cannisters actually get used, would they qualify as 'approved' by a 
ranger? The worst scenario is that the cannister fails and you lose your 
food altogether. How do we test this? While it will be good fun to watch 
Switchback's bear testing routine, how do you really know what a bear can 
do? I know they can do alot more than we credit them with... that's why 
people lose food to bears.