I think there is a clip of Top Dog and Salty Dog fighting WEKAF style on the first Grandfathers video.
I tried WEKAF once. It's fun. I feel there is a slightly different skill set involved. Most players seem to try to hit a patterned flow. It's useful for developing the ability to hit rapidly with a light stick. Depending how you play, you might also develop good use of your off hand too. Any type of situation that is going to bring you into the adrenal state is good. Since the scope of a WEKAF fight is limited just be aware that you should also develop your footwork, power, grappling, etc. Train hard, have fun.