Pekiti Tirsia Kali Global Organizations store page. Tim Waid has been studying Pekiti Tirsia Kali for over 20 years and he is unique in the fact that he has never, EVER, trained another system of martial art or FMA! A veteran of the Marine Corp Tim Waid has some of the best instructionals on the market. I will be reviewing his "Advanced Footwork" here shortly. In the meantime check out the 30% savings on DVDs and shirts by clicking here.