Indeed very few practitioners of the Art of Eskrima  nowadays specialize only in one facet of a complex  fighting system ranging from solo baston, doble  baston, espada y daga, pangamot-the entire gamut  of the Filipino Martial Arts. One such rare master is  Gregorio "Goyong" Ceniza of Mandaue City, Cebu.   GM Goyong specializes only in the deadly business of knifefighting, period. Baraw Sugbu formerly   known as Arnis Diablo traces its lineage to the  patriarch of Cebuano Doce Pares the Great Grandmaster Lorenzo Saavedra. Saavedra taught a distinct brand of knifefighting that he  shared to only a few choosen disciples. One of  Saavedra's proteges a certain Simo later passed on the methodology to Lucresio Okit Albano who    became later Goyong Ceniza's mentor in Baraw  Sugbu.   The system was so secret that GM Ceniza says they used to practice under a cloak of blanket to  screen the deadly drills. One of GM Ceniza's top students was the late Aproniano "Rene" Capangpangan who also later became the mentor of Dr. Ned Nepangue.