ST, If the molded handles help humans get their hands on it, I'm pretty sure bears could get their teeth on it too.

In my experience, no guide or outfitter I've ever been with has ever hung food. But then we were only traveling remote areas too.

IMO, If there's known nuisance bears roaming the area, you better be hanging food or find someplace else to trip. Bigger problem is what happens during the portage. Unless you can do a one pass portage, or have at least 3 people in your group, you have to drop your food and leave it at some point, or do people hang there food at each portage. Drop your food halfway maybe, to try and trick a smart old bear poaching the trailheads,  :-/