Filipino Indonesian Self-defense Tactical System is a self protection course that includes defensive and offensive tactics from all four ranges, grabs, and weapons from the Filipino Martial Art known as Pekiti-Tirsia. Its origin has been revolutionized through Mas Guru Greg Alland's concept known as SinaTirsiaWali. It is based on the simple concept of "Can you stop me, can I stop you?" Where most systems emphasize how to "hit", SinaTirsiaWali emphasizes how NOT to get hit from an impact weapon, blade, or empty hand attack. This belief is based upon correct footwork, body mechanics, and how to strike or block and based upon the "rules" of the street. The goal in all training in the F.I.S.T. system is not to think, but to react. What we offer is no nonsense self-protection tactics. You will learn and apply practical self-protection "techniques" against skilled and unskilled attackers. You will learn how to joint lock your attacker into submission, throw your attacker off balance using his or her own energy, and you will also learn to strike your attacker using your hands, elbows, knees, feet, and any type of everyday objects such as belts, hankerchiefs, and pens just to name a few. In addition, you will learn to increase your tactical speed, power, timing, accuracy, position, and fluidity. 

Mas Guru Greg Alland is the founder of the SinaTirsiaWali Kali Silat system which comprises FIST. Originally based upon the principles of Pekiti Tirsia, Dekiti Tirsia, and Doce Pares, Mas Guru Greg Alland formed SinaTirsiaWali in 1989.