Can anybody tell me about the roots and sources of Serrada? I know that there are books on the subject, but the Mark Wiley books have disappeared from my local library! So I'll probably buy them on Amazon. So far, I've read that GGM Cabales studied under Felicisimo Dizon. Who was Dizon, and how much of his art is reflected in Cabales Serrada? And, were there other old masters who influenced GGM Cabales, or is the Serrada system primarily a product of GGM Cabales own experience and ability?