Champion Mastery Score Addition Concept/Discussion

I dunno about anybody else, but here's the pitch.

You feel like you do really well in a particular game, and only end up with an A or A+, expecting at least an S-. Don't you think it would be nice to know where we fell off at?

Maybe your CS could have been a little better... Maybe your skillshots weren't as good as they could have been... Or maybe you could have survived one of those team fights.

Honestly, I would love a breakdown of the basic scores that seem to determine the score (I know they have been talked about before, but I don't know if they were actually given; this is just an example of what I would expect the system to show):

• Kill participation
• Creep Score
• Skillshots Landed
• Vision Score
• Healing Done
• Damage Soaked/Averted
• Damage Dealt
• Damage Taken and Death score statistic (IE Soaking damage but surviving most of the team fights)

Really this is just an idea, and I would love to hear back from the community (and dare I say a Rioter?) about this, and see what people think. Note: I am a Bronzie, I am not great at the game. But some kind of feedback of what I would need to work on with that particular champion would be wonderful advice, other than a retroactive score based on the entire server playing that champion and ether I won or lost that game.

TL:DR

I would love to see individual grades/scores for the statistics behind the one grade we get for champion mastery. Thoughts?