Use it only when you have problems.
But you would do it right before you hit save or load in the game. In my experience you have to do it once, (if at all), when you first create the save on the memory card. Then each time you need to load, do it then too. All games are different though. I've only found 2 games that needed it at all. Although i've only tested 10 to any degree.
But you would do it right before you hit save or load in the game. In my experience you have to do it once, (if at all), when you first create the save on the memory card. Then each time you need to load, do it then too. All games are different though. I've only found 2 games that needed it at all. Although i've only tested 10 to any degree.
