It depends on the strength of the hive acebird. If you have a very strong hive that is making swarm cells, the eggs are fed from the start with royal jelly to make queens and there is lots of bees in the hive to feed and take optimum care of the queen cells. On the other hand supercedure cells or emergency cells can be less than optimum depending on the strength of the colony if the colony is less than optimum the cells wont get feed and taken care of properly resulting in small queens that are less than ideal.