Oh, absolutely - the whole point of the canisters is that it doesn't matter if they smell them (which they will), since they can't get inside.

If you expect that bears won't notice hang bags and any bag using an "odor proof sack" you're just kidding yourself - the bears will find them very quickly. The odor proof sacks will have smells on the outside the first time you put your garbage into one or put away the rest of your stuff after a meal (and over time they'll develop leaks), so they really don't do much to slow the bears down.

Creating an impenetrable barrier is the best bet.