I been to three evening parties, they do have daytime as well.  The first two was mostly CDs with 3 hot TS's.  Definitely the opportunity for action, either out in the open or in a private room or small changing tents.  

I recently went to the Halloween party at a new location and it had tons of hot TS's including Cherry Spice.  The location sucked but there was plenty of action to be had.  They've since changed location again but haven't been.

http://tlust.com