Tuesday nights seem to be the best for most people. We will be running tomorrow at 6PM or so.
Here is a link to our challenges section and schedule. I will be updating the times shortly. I think your 2:24 has been beaten already Make sure you add me as your friend on Xbox Live so I can see your times and what not. Also, if you want an invite to our little club, let me know. That makes things much easier to track.