My bees have been building perfectly formed combs up until this last week. They decided to make the last comb so thick it is attached to two bars and they were on their way to attach it to a third. I cut some pieces off that were headed toward the third bar and inserted a full brood comb in its place. Was that a good idea? If not, what should I have done to make them start a new comb instead of just making the existing comb wider? This set of combs is about 13 bars back from the front of the hive and the entrance is on the end.