We're going to have it running a long time before Tues or Weds! The big event will not be a demo so much as a party- we wanted to have one night where a party collects around DDI. So an after-party would be a bit redundant. Not sure which night we're going to do it, and there might be other things we have to schedule around, too. Also, we're probably going to run DDI five nights in the week, so I wouldn't worry too much about conflicting with our schedule- we'll be spending many evenings with the installation instead of at camp, it's unavoidable.