I'd send in another shot just for shits and giggles, but that wouldn't be fair to the other guy who entered, nor would it be a very interesting SotW...
That said, I'm not even sure if you're actually allowed to send in more than one entry for a single competition...
Even though I don't see any problem with just starting it late if they get a third shot sometime today, or even tomorrow. Seriously, it never actually takes a week to decide the winner anyway. Usually you can see who the winner is going to be within a few hours.
