Riot, you weigh CS too heavily in the grading system.
CS is one of the most important aspects of the game and I understand that. Its one of the staples to look at when viewing people's skills. But a player going 20/1/10 (30.0 KDA) in a game calls for a grade above an S-. Scores like that are rare and hard-earned. I'm a Gold V Lee main (hehe xd), and of the one or two hundred games I've played, I believe this is one of my best. Ironically I've gotten an S+ on Lee Sin for performing nowhere near as well. I just think the grading system could be better tuned, especially depending on one's role. I'm not exactly sure how the system works, whether it includes objective control, #creeps counter jungled, kill participation, etc. This is more of a vent and if anything, I personally would like to see stuff like this happen less. Thanks :)