Mr. North, from down Under, greetings. The drone frame does not promote swarming if there is plenty of room for the queen to lay. If a genetic grade hive prepares to swarm, that is, if I find queen cells, I find the queen and remove the queen. No queen, no swarm. Then the queen is placed in a new hive with brood, food and frames to lay and moved to a new location, which may be only a few feet away.
My genetic grade queens are placed in hives and the queen does not know where she is at so no way for the queen to return to the original hive. Support grade hives are allowed to swarm most of the time.
Cheers