This is one of the first hive manipulations of the year for me. In part to get all colonies ready for the pollination of fruit trees, which alines with the dandelion flow. What we want is to equalize so all the hives being placed in the orchards are strong enough to provide the pollination needed but also that they have room to expand and store the nectar and pollen collected. The industry standard for a pollination unit strength is min 5 frames of brood and 8 frames of bees. I like to send out 6 to 7 frames of brood and 9 to 10 frames of bees. By equalizing to a set size pollination unit. It provides consistency in colony strength, and provides swarm management for the April May swarming times.