The attraction gate can be tested by anyone with a few magnets. Looking below at the picture as the top magnet is strongly attracted to the first stationary magnet.
As it approaches the first magnet, it won't stop at the high angle point of the first magnet. The strongest point of any magnet is the direct center of its pole or vortex, so it will try to center itself with the first attracting magnet pole. But the high angle point of attraction on the first magnet keeps it from doing so completely. The top magnet in trying to center itself with the first magnet is actually helping out the sticking stituation by moving further left towards the 2nd magnets high angle point. In a instant, the 2nd magnet pulls the top magnet from the attraction zone of the first magnet. Spacing and magnet length determine how strong the gate performs.
UPDATE: To increase gate performance raise each magnet next in line by .020 of a inch. (This measurement can be experimented with) This creates a very powerful one directional gate. This is (PFI) progressive flux influence. To get out of the gate, start another gate following the last former gate magnet in a track configuration. Using (3) tracks with various progressive gates, allow (2) magnets from different gate tracks to push the (1) magnet from the end of the first gate into the beginning of the next gate. With proper timing (2) magnets from the other gates are always pushing or pulling (1) magnet between gates on another track. This is simply working with magnetic flux strength differentials. This cancels the small sticky spot between gates on each track. Note: If you try to push or pull (1) magnet completely out and away from a track using (2) magnets from another track, it won't work. You have to stay in a circled loop with several gates. Also (1) track with several gates won't work in a loop by itself. All the gates and tracks have to be properly timed and setup in a configuration simular to the magnet engine design shown on this site.
Calloway Gate