I think Tazi had planned on replanning the College Park airfield thing because not too many people were going to be able to make it that day.
The idea of a saturday seems good to me .. I'll be flying back from MSY on the 12th .. but if that day is good for everyone else then the 12th it should be.
I think the Viajero Joven usually looks for something more in the downtown area... but downtown DC is not my area of expertise