Currently SOB is handing out second pass work units. These are smaller so crunch to completion faster. You don't need to change any settings, the 2nd pass work is being handed out by the SOB server automatically. It is recommended to run the latest version which is v2.5.0 as it is slightly faster than the old version. As the new tasks are small they also yield a lower cEMs / sec rate. Don't ask me why as I don't understand the Mathematics involved in it, they just ARE :!:

Our AMD Athlon XPs have a chance of completing a task in under a week now.