Talk:Battle Performance Rewards/@comment-192.55.55.41-20130520203046/@comment-60.241.16.230-20130715114344

The SR key was always given since the very beginning. It wasn't explicitly done. It was just that the first premium key you draw with would be a guaranteed SR. The tooltip even informed the player of that. So the first premium key the player got was effectively an SR key.

When they made the "change" for new players to start off with a SR key, they also removed the guaranteed SR draw from the first premium key.