Taking one hour longer on 5 hours trip (for the DB) does not equal "half as fast." As to "half as good" — that's debatable, isn't it? For some, they may be nea

Taking one hour longer on 5 hours trip (for the DB) does not equal "half as fast." As to "half as good" — that's debatable, isn't it? For some, they may be nearly as good.