I've read that Game Center Leaderboard scores are only updated when the newly posted score is greater than the already existing score.
This made me wonder if it is possible at all to have a Game Center Leaderboard that stores scores counting down, for example "time to complete level". Can this still be achieved with the correct setup of the Leaderboard, for example with sorting and formatting modifiers?
And just to confirm, is it really not possible to have a Game Center Leaderboard simply accept the value that you send to it, regardless of whether it is greater or smaller?