When we race we just launch off a 4 by 8 sheet of plywood. Here's a couple vid's of us racing OS 46 to get an idea. A nelson would fly out of your hands, and we always land dead stick. So you do not need much to do quickies, just space to land
http://www.youtube.com/watch?v=cbQemK68aYQ
http://www.youtube.com/watch?v=weFDLpqbjFY