Going straight up and down I think I would play them with all five fingers and jump, at least at speed. I just tried it and, of the five possible positions in each key, most of them are very easy and compatible with this grip. Usually I wouldn't play them straight up and down of course, it lacks musical interest, but if I did, that is how I would do it. This grip would also lend itself to playing them in double notes and other ways without either struggle or thought.