If you get near a bookstore called "Borders" stop in and pick up a magazine called "cycling plus" Its a Brit publication that far outclasses anything offered here in the USA for Roadies. Anyway, this month is their annual Lock review. It's very good reading and they test these locks to destruction. From what I read all the cable locks fail miserably. Takes something like 3 to 5 seconds to defeat. I'm only guessing, but I think that lock and cable you refer to may only last an additional 3 seconds.

get the magazine and read the article.

Even with the above said... I still use a cable with a combo lock. But I only leave my bike in places that I can still see it such as a restaurant. I figure it buys me enough time to get out there and kick that person's a#$.