Tom,
This Viking pair is interesting in that it's the most fully-featured non-GE-badged GE product I've seen. Both the washer and dryer have features unique to the GE badge only products (mini-basket, fluorescent lamp). On the dryer, the description indicates that only the PP cycle includes a cool-down period (it seems to leave out the Sensitronic cycle by its wording). The text describes a higher degree of dryness measurement in the Sensitronic cycle. The dryer offers 4 temperatures, and with a START button, would account for the 5 push buttons, but not sure what the rocker switch controls; could be end of cycle signal or could be the cool-down feature (?) if it's coupled with the Automatic cycle.
It's a pretty cool pair. I've never seen any with the Viking badge.
lawrence