I found a good property that posts quickly, and will post multiple meetings separately without some of the confusion I've read about in this thread. Weekend meetings post the following Monday or Tuesday. I only wish I had found them sooner before I wasted time with some others (I'm still chasing down a meeting from the first week of May). I ended up booking several follow up meetings with this property so will most likely just stick with them to get the remainder of the nights I need.