Everyone finds their own methods, but, here's my practice, FWIW. I put point of lay pullets through a training period and it normally "takes" for the rest of their days. I don't allow POL pullets free ranging until 4 in the afternoon. They still get 4 to 6 hours of good free time, but the long period of confinement allows them to hone their loyalty to the nests I provide. I also start pullets out in boxes set right on the floor. I do sometimes use golf balls as a cue. They learn quickly. Usually within three weeks, all have mastered their lessons and I watch to see if they return to the barn and to their nests to lay. I don't "trust" them until I've seen them all either lay before being let out, or faithfully return to the nests during the day. Hope that helps.
