I have both tapes, like them a lot. Generally I like "conceptual" tapes, play them over and over. Watching these, some things clicked right away. Other stuff, a lot more, just keeps coming. I practice, think it over as I'm wandering around, and things fall into place. Opened up a whole world of trapping and grabbing that I'd never been able to quite grasp before. The first one, the Kali tape, has been better for me. I'm having more trouble with the Silat tape. That is, I get more out of the Kali tape, faster. I'm not experienced enough to know if that's because of my own background, or my body type, or whatever, just to say that I have the tapes, I liked them, and try to elaborate a little. Hope this helps.