The whole problem with this premise is, it is entirely dependent on the right lane dwellers actually doing the speed limit.
If someone's not going the speed limit, that forces those doing the speed limit jump out into the 5 to 10 over lane (heaven forbid they speed up to merge left and brake the speed limit) and the cascade begins. The Sea of BRAKE LIGHTS
The other issue is the Dale Earnhardt wannabes out there in the NASCAR lane seem to think it's perfectly alright to wait until the very last second to attempt getting to their exit, most of the time cutting off both other lanes while having to slam on their brakes to avoid missing their exit....
Can you tell I've driven in Seattle traffic...?