While a teener, in the late 60's, Monching was fond of playing basketball, his favorite game. His other sport included hunting, swimming and fishing but martial arts, particularly "Aikido", never entered his mind. In 1963, Monching was 19 then, and in his 4th year at the Plaridel High School, when he met Benjamin Galarpe, his classmate and a brownbelt aikidoist at that time. Benjamin, an american citizen, turned out to be a native of Ilo- ilo, the town of Monching. Benjamin, who left Guam for the Philippines became a good friend of Monching. Benjamin put up a gym in his San Andres Bukid residence.

He is now considered as "the Father of Aikido in the Philippines". Monching had no interest in learning the art but eventually, his friend was able to encouraged him to learn Aikido. They soon put up a gym at Rizal Avenue, and later on at Dapitan Street, in Sampaloc, Manila. In 1966, Sensei Koichi Tohei of Japan came and promoted the first three Filipinos in traditional Aikido (Aikikai style) to the rank of 1st Dan Blackbelt, which composed of Jessie Garcia, Ernie Talag and Ambrosio Gavileno.

Two years later, in 1968, Monching was again promoted to higher rank. His two colleagues failed to attend the rites. Monching was the first and only Filipio at that time promoted to 2nd Dan Blackbelt in traditional Aikido. It was also during that time that he graduated with a degree of Bachelor of Science in Criminology from the Philippine College of Criminology (PCCR) in Manila. Later that year, he founded the Philippine Aikido Club in Baclaran, Paranaque, Metro Manila. A year later, he transferred it to Quiapo, Manila and renamed it to Philippine Aikido Sports Association Inc, (PASAI) since it al- ready acquired several branches all over the Manila Metropolitan area.

The Master also studied the basics of the tactical sef-defense of judo, and karate while still in college but learned the rudiments of traditional arnis only from an old man from Pangasinan province and another one from the Visayas, who happened to be the teacher at the Doce Pares Club, in Cebu City. Now, the Master has modified the style he learned from them to make it more effective in street fighting and called it "modified arnis. This "modified arnis" is different from the others because it has Aikido movements in it. From the combined fighting features of boxing, karate and aikido, the Master has also created a new kind of combative art which he called Bokaido. It is a term coined from the first syllables of boxing and karate, and the last three letters of Aikido. He enjoys Aikido, according to him, because the group (students & instructors) seem to be merrier or litterally much more harmonious with each other. Aikido has helped improve his self-discipline because he became more confident, brave and wherever he goes, he is always relaxed. It helps in physical fitness also and he claims that in food, he likes soup & vegetables. He doesn't smoke and he takes 2 to 3 bottles of beer occasionally.

In Aikido, minimal or no force is needed to subdue or neutralize your oponent. Even ladies, the elderly and kids as well can indulge in it. "It is the power of the mind that works". KI or "inner strength" is essential in Aikido. Several seminars were conducted during those times. One of which was the seminar conducted by Sensei Maruyama. Sensei Koichi Tohei was responsible for sending Maruyama, and it was through the gesture of Shinshin Toitsu Aikido Ki Society. There was a plan then to put up a Ki Society in the Philippines. Master Monching later on, together with other clubs and organizations formed the Aikido Association of the Philippines (AAP) where he is the president, to unite all Aikido clubs all over the country. The founding members of AAP were; PASAI, Philippine Aikikai, Shinbu Dojo, Makati YMCA Aikido Club and the Martial Arts Training Center of the Philippines or MATCOP. In 1992, he founded the Philippine Combat Aikido Federation, Inc or PCAF, which has 37 chapters all over the country. The main dojo of Combat Aikido is located at Cubao in Quezon City. Master Monching has transformed traditional Aikido into Combat Aikido.

The Master's rationale was; "Combat Aikido is more adaptive to actual street fighting with its modified combative self-defense techniques. It is based on the Filipino culture of fighting which is different from that of other countries in the sense that it is more practical and can be used right away in street fighting more effectively." The primary goal of Combat Aikido is to enable its practitioner to defend himself against any assailant especially in street fighting. Therefore, it teaches only those techniques which have been proven to be effective in combat and discard those which seemed to be less effective. The Combat Aikidoist does not go against the force of the opponent, but the very force of the opponent is what he uses to either throw or pin the opponent down to the ground. There were lots of blackbelters that the dojos of Combat Aikido have produced. Some are foreigners, politicians, movie personalities, military men, including bodyguards of well known businessmen and politicians.

Men and women, young and old, the rich and the poor, have enrolled in the dojo to learn this art. Many schools and companies have also tied partnerships with Combat Aikido for their employees and students. Master Monching married the former Edith Gealone, who hails from Sorsogon and a Combat Aikido blackbelt herself. They bore six children, all are Combat Aikidoist. "With maximum use of his imagination, a Combat Aikidoist can modify and refine any martial arts technique, and even create new ones, to his own advantage. For this modest art of self-defense keeps on evolving beyond its present state of effectiveness. With his creative ingenuity therefore, its devoted practitioner can ultimately make Combat Aikido as the sublime art of self-defense at his beck and call."