Cutting Queen Cells


Some people advocate crowding down bees in order to get them into swarm mode, so that they will produce queen cells that can be used to make splits. Has anyone done this before? Also, how do you keep them from leaving before you have a chance to cut cells, since the swarm will often leave when the cells are capped? If you wait until the cells are a day or two from hatching, it seems to me the swarm will be long gone with a large bunch of needed bees.