Great points all.  

In the interest of sharing everyone's bit of wisdom/practice on this subject...

I had a conversation at copia with a Canadian vendor selling the custom bags that fit inside the blue food tubs.  He told me his technique for trying to protect against bears getting into the tubs...he carries a wet washcloth in a double-baggie on all his trips.  The washcloth has been soaked with liquid antiseptic or an anti-biotic.  Each night he thoroughly wipes down the tub with the washcloth, then returns it to the baggies.  His thinking, the bear will smell plastic, metal, and antiseptic....not food.  He's never had a problem with bears.  (Like Jacobson!)  I'm going to try this next year.  What the hell, it can't hurt. (Unless bears like antiseptic...)

prouboy