The standard time to add another super on a regular langstroth hive is when it is 70-80% full. On a long langstroth do I add a few frames at a time? Right now, the hive has gotten larger and it is getting hot with lots of bearding. Do I add frames commensurate with the size of the hive? (5 frames full with 2 empty----20 frames full with 8 empty), or do I just keep 3 empty frames always at the end?