I am glad to announce that ETernal Clan now has trackbase TSP rating enabled on #ET|NoDownload| server.
You can look up your raiting on: http://et.trackbase.net/
So unlike rate where it calculates how much xp you make in the map, players are rated on more than only xp. Skills are also included (killing, hits, headshots, revives , engineering, battle sense...)
TSP formula includes hits/headshots/kills/engineer/battle sense/revives and more of those things.
You can read more about TSP rating method here:
http://forum.trackbase.net/threads/723-OFFICIAL-W-ET-Discussion-new-rating-method
So what are you waiting for? Start practising now, or just check out how does it work.