Supering strategies change depending on what it is that you are after and the things that you have to work with. Generally speaking the more supers than you have on at the beginning of the flow the more honey you will get. The reason for this is that the bees need a tremendous amount of storage space when the nectar is flowing.

The principles are this: Let's say all of your honey crop comes in on one day. Your crop will fill 2 supers of honey which would be a nice harvest at the end of the year. Now remember that unless the bees are robbing someone else's hives they are bringing in nectar. This has to be reduced to honey by evaporating the excess water. Perhaps 75% of what they bring in has to be evaporated in order to turn it into good ripe honey. This means that instead of 2 supers to hold all this nectar you will need 8 of them! Fortunately our honey does not come in all in one day but with the preceding example you can see the principles involved.

The faster and more intense the flow is the more space you need for the nectar. When you have drawn comb the rule of thumb is super early with lots of them... before the flow.

Bare foundation is a different story. Those go on one at a time. There is no advantage in providing extra foundation to catch the nectar flow because the bees have yet to make comb to put their cargo in.

In general add drawn comb all at once and foundation one at a time.