yea I have checked out the hitbox compensation system.
Basicly its predicts ahead of the player but only gets hit in that area in the next second, hence lag prediction, so if you have seen that movie with the hitboxes visible and the person playing against bots, well that no longer works as I tried to get the same results and u cant on aim ahead on a listen server, yet to try getting another computer on my network to run a ded and turn on hitboxes and see if it works there.
http://www.putfile.com/media.php?n=css_hit_b0x_bb