http://ozreport.com/2014BigSpringNationals.php

At the moment we have fifty pilots signed up for Big Spring. We also have the
capability right now of bringing four Dragonflies and two trikes. The two trikes
and trike pilots have successfully towed in US National competitions and in
Texas. This would allow for sixty pilots. We would have to make other
arrangements for tugs if we want to have more than sixty pilots. At the moment
we don't have plans for bringing more than six tugs.

Forty three pilots have paid and are confirmed. The seven pilots who are not
confirmed are all international pilots (Guatemala, Mexico, and Puerto Rico). I
may be forced at some point to ask the non confirmed pilots to pay their entry
fee or go to the waiting list.