SS's are posted by other users for the GMC. We don't really have a list of SS's for the GMC. I wouldn't use a list from 2011, it's possible it's outdated, and I wouldn't consider it safe. You could check YouTube for a video of a person playing the game, and use that for the score and the time, because then you know it's possible.
I'm not sure what my problem is, but I'm not finding them on Neocodex.
OH, I do see they're posting them on the other site though. Would you like me to copy those here for our users?