For what it's worth, the original Sahara [at Royal St. George's] was a diagonal driving line ... you could bite off as much as you wanted, but the approach angle was harder if you bailed out.
The second at National is different. You either have to go for the green, or play way out to the right to the upper part of the fairway. If you hedge in-between, you're down the slot in deep rough way below the green.