[Blackjack] Tie breaker

I'm confused about the tie breaker: is less time better or worse? The longer you play, the better, right? But, I presume, you want to reward efficient scripts more, so less time would be better. I propose the tie breaker be the number of hands played (more is better), and then the time those hands are played in (less is better).

On a somewhat related note, what happens if there aren't enough cards left in the deck to deal? Game over or a reshuffle?

Well, the number of hands played will be very similar, unless for scripts which run out of money anyway, and don't get tie-breaked. Less execution time is better...

On a somewhat related note, if there are not enough cards to complete a hand, the bet is refunded and the game ends

So, at the end of the game, if you get, say, 6+6, and you know there is only a 10 left in the deck, the best move is to play split, because the cards run out and you get your bet back ;)