Here the pull-in and drop-out boundaries are shown from the side view. With magnet shown above these lobes, the contacts are open in the sensor below on the PCB. What is immediately obvious is that the magnet is offset from the reed sensor. What becomes clear in this case is that the magnet must travel further down to reach the pull-in boundary before the contacts will close. If the designer is looking for the shortest distance to travel, then this is not an ideal design. Either the magnet must be shifted directly over the reed sensor for its vertical movement. Or the reed sensor must be moved on the PCB to be directly under the vertical movement of the magnet. In either case, the designer will enjoy the shortest possible magnet downward movement to close the contacts.