FWIW, The problem is similar to scheduled radio networks. There needs to be a little discipline, which means regular arranged days, times, punctuality and commitment.RoofTops,
that's a good idea - have a set time.
I guess it may not be perfect for the Colonials but what about we try 20.00 hrs for a bit? Even if only 10 or so users like the idea, at least there would be a much better chance of meeting up if there's a common time.