Combat Wrestling is a competition cross point rule set for all grappling styles. If you set a diagram of all major grappling styles (BJJ, both Olympic wrestling styles, Judo, Sambo) then throw in a few not so well known (even Sumo), you will find out that all of them have takedowns scored high (if not a match finisher), pins been either end of the match of very highly scored, getting out of bounds been penalized (but also been used as escape from submissions, since out of bounds game is not recognized) and finally, some of them have submissions (in Judo and Sambo you can only submit on the ground). None of them (except BJJ) scores back mount. Combat Wresting does award you 1 point (same as all other positional points, except pins, only once per match). All of them (except BJJ) are restarted in standing. In all of them, submissions are the end of the match. So, in short, if you really want to be fair and invite all grappling styles to compete and have a fair chance of winning, Combat Wrestling is the optimal one. The whole point of the rule set is to be something like K1 of grappling, not a style by it self. Although, if someone is trained under Combat Wrestling rule set, he will obviously be very well balanced grappler, with equal knowledge of takedowns, positional control, pins, submissions. And as such, can have success in all of the big grappling styles, with minor adjustments to jacket. I hope that answers the question.