Not a Jai Alai court, that's a skatepark. I've currently got 2.15 BA's on that Schwinn, and I don't find them to be any slower than 1.5" Kenda Kwest running at 100 psi on the Rockhopper. Granted, the Kwest is a cheap tire, so that may have a lot to do with it.

I have about 30-40 psi in the BA's, and I rarely check them with a gauge, they seem to work well at a wide range of pressure.