Unless things have changed a lot since my day (T21/Mk3) I would have thought that it was difficult to integrate civillian and ATC gliding training, although perhaps not impossible. My civil training was designed to bring me to a level where I could self authorise to fly solo albeit under limited conditions. This was one's status after a successful first solo flight(x3) At least at London Gliding Club, it typically took more than twice the number of launches allowed the average ATC cadet to go solo. The only instructional flights were then required when conditions changed or to carry out regular checks to make sure I wasn't developing bad habits. As an ATC instructor, the sole aim was to get the cadet competent to fly solo in the conditions at that time., and to do it in the minimum number of launches. Integration would surely require one operation to make significant changes to the way they operate.