This is a very interesting topic because Galad and Gawyn should be tested. Does it say that if the ability to channel is inherited that both parents must have those genes? In this case if so, then all four involved, Rands father, Tigraines, Morgase and Galad's father all had the genes. I think it is time to do a little more research, maybe add this to an F.A.Q for my page. I will see if i can find anymore information that might help.