If a booming hive has 12 queen cells, they are about to swarm. I would do a cut down split asap. You probably do not want to leave more than two queen cells in the parent hive, or they may swarm anyway.I've been reading about cut down splits and feel this is the answer for a good honey crop as we'll as a preventing swarming. This hive already has 10 or 12 queen cells in progress. They are not yet capped but they will be in the next couple of days. My question is this. Should I go ahead and do the cut down split? The temps are around mid 60's in the day and mid to low 40's at night. Is this too cool for a split?