Well I've been back into training for several months now after a lay-off of many years, and I've been reflecting a lot on training methods. In the various branches of WT with which I have some experience, Chi-sau is taught in two steps. Each set of movements and applications is systematically introduced in a sort of Chi-Sau form, usually referred to as "Section 1, 2, 3, etc." Then, after the movements become well trained, they are integrated into your body of free-form Chi-sau movements which can be applied randomly when an opening is presented. This free-form Chi-sau can be practiced cooperatively or really cranked up to where it becomes Chi-Sau sparring. How do you approach Chi-sau training in your system?