Re: Magnet Swap - Magent Polarity / Placement
Go to Target and buy a compass. You can use it to check which way the original magnet was inserted.
Also, if you are using magnets from another SD pickups, the markings (Blue = A2, Black = A5) will be on the same pole. Just remember that the poles go the length of the guitar, so that one pole is facing the neck and the other the bridge. So, if you ever need to change the polarity, just flip the magnet like a pancake.