i think he is refering to the cog swap the gameshark can boot backups on its own with this method.
on the other thing i would advise you to invest on a premodded station they are cheap enough now days and it will be better for you in the long run.
as shadow explained above its 90% chance a mod wont work well it will but you would need a new laser.
or 10% if you use it little it will work fine.
"Light travels faster than sound. This is why some people appear bright until you hear them speak"