Between many other Filipino martial art styles that Professor Pallen has learned, he has revived and founded Senkotiros International in the year 2000.
     Senkotiros originated in the Bicol Region of the island of Luzon in the Philippines. Professor Pallen was born there and learned the basic techniques of the style from his grandfather. His grandfather, Luis Moratillo, a Barangay chief and police officer, was one of the practitioners of this style of arnis. These teachings, from many years ago, sparked Professor Pallen’s life long interest in the heritage that is the Philippine martial arts.
     Professor Pallen continues to develop Senkotiros, his system of Philippine martial arts; he has worked tirelessly to perpetuate the martial heritage of the Philippines; and he has established himself as a consummate instructor, competitor, coach, promote, and official. He is also a proud instructor, coach, and trainer of several World stickfighting champions.
     Professor Pallen today as in the past furthers his quest for the Philippine martial arts skills by continuously returning to the Philippines visiting Luzon, Visayan and Mindanao Islands.