Master Tarm announced, "You can not leave yet, my people have already bolted the door and you can not escape, so you might as well do as I requested. I want you to apply your best techniques attacking me and do not pull any punches. If you do, you will surely regret it! Come on, attack me!" Realizing he had no other choice Kong On charged in to attack. Master Tarm applied his double grasping block to ward off Kong On's attack and immediately countered with the Butterfly Palm strike (double palm strike) to Kong On's midsection sending him flying backwards and falling to the ground. 

Master Tarm urged him to attack repeatedly, but each time the young visitor was floored, unable to penetrate Tarm's defense. It was obvious he was no match for the master's superior fighting strategy and experience. After the embarrassing defeat at the hands of Master Tarm Sarm, Kong On approached Tarm and thanked him for the valuable instruction and after bidding farewell he headed back home. He still could not understand why Master Tarm Sarm had set him up for this meeting and tricked him into sparring with him.   

Grandmaster Kong On and his son, Sifu Kong Hing
at the Grandmaster's residence in Hong Kong,
this photo was taken around 1971

It was later that Kong On learned that Master Tarm actually did admire his martial art skills and was hoping Kong On would ask him to take him under his wing. He discovered that Master Tarm felt had to teach him a lesson to convince the young man that he lived up to his reputation. When Kong On learned of Masters Tarm Sarm's sincere intentions and desire to accept him as his student, he was overwhelmed and rushed back to Master Tarm's house to beg him to accept him as his student. 

When Japan invaded China, Kong On joined the army as a martial arts instructor. There he met another famous instructor, Ku Yu Cheung, who was a master of Buk Sil Lum (Northern Shaolin system). Master Ku admired Kong On's kung fu and they both became good friends. Ku Yu Cheung was also well aware of Tarm Sarm's reputation and asked Kong On to introduce him to his master. When they were finally introduced, they both quickly developed a close relationship and later they both agreed to match their martial art skills against each other in a friendly match. After three days of sparring neither one of them could gain the upper hand to claim victory over the other. Out of mutual respect for one another they agreed to an exchange of students to learn each other fighting style, Buk Sil Lum and Buk Sing Choy Lay Fut. Among these exchange students sent to Master Ku Yu Cheung were Kong On and Chan Leen Bark. Lau Kam Tun and Lung Tse Cheung were selected to train under Master Tarm Sarm. 

Master Kong On's military rank was Siu Gar (Major) and in the beginning he trained the troops the Chow Gar Form 'Wong N'gow Luen Barn' (Yellow Cow), but the general was not pleased with the ridiculous title given to the form so Kong On decided to give it a better name. After noticing his own strong physique he thought about "Fu Bui Hung Yiu", because his back was strong as a tiger and his waist was flexible as a big bear and when he performed his forms he looked like a panther. He then decided to change the name to Fu Pau Kuen (Tiger and Leopard Form). Originally there was only one form but Kong On combined several other famous forms and came up with five sets of Fu Pau Kuen forms numbered from one to five. For example on form called "Jau Tse" was incorporated as part of one of the five sets.

Grandmaster Kong On and his son, Sifu Kong Hing with
 two of their students. This photo was taken in 1970
 after the Southeast Asian Kung Fu Tournament in Singapore.