Damage deatlt to towers should count more towards overall grade

Hello, self procliamed main here, I have a suggestion for the ranking system. Not like ranked mode, I mean the grades, the stuff you need for champ mastery, for example.

Last night I had one of the best Yorick games of my life, had a great early, and took many towers. It was a very long game, the enemy team had 3 infernals, almost double our kills, and had a fed af with an always by his side, but because of my constant splitpushing we managed to get enough objectives to stay ahead in towers and eventually win. Grouped when needed split at every possible moment, the usual. Here is my match history for it if you want to see specific details, like gold advantage and all. http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2615040297/235221580?tab=overview Here is where I'm getting at. I am really trying hard to get mastery 7 on Yorick, like really hard. But the grading system seems to care much more about kda then objectives. In able for me to get an S I have to stomp early and end the game soon enough before I start to fall off, otherwise I just don't have the skill to keep a consistent positive kda through 30+ minutes. I think its absurd the system doesn't take much into account when it comes to towers.

Honestly I think the system isn't entirely fair for splitpush heavy champs, as they often deal way more to towers than champions, and as such usually have an average or negative kda unless they can continue to stomp all game, which is much easier for late game splitpushers like and then it is for Yorick, who's combat prowess falls off late game, and is useless without maiden late game.

I mean, I can fully admit I don't think I shoulda gotten an S or S+ with the kda I had in this game, thats not S worthy no matter what.

However, with objective control like this: https://imgur.com/a/I7WY0 https://imgur.com/a/dHmkd I think dealing that much to towers, and destroying 8 out of 11 of enemy towers, rougly 3/4ths of them, deserves a liiiiitle more than https://imgur.com/a/VmzUT An A-

This isn't meant to be a complaint post in any way, if it comes off that way I apologize. Its just frustrating to practically carry a game through objectives and have the game say I did average at best.

The system needs to take damage dealt to towers (towers, not objectives, as the objectives stat is usually always the highest by the jungler, if it went of of that statistic junglers would have a much easier time getting an S) into consideration, as thats where some champs shine for than others.

Still though, I can fully admit if I want mastery 7 I need to do better than this. I'd roughly estimate this game deserves an S-, considering all I did to towers, but that still ain't a mastery 7 token. I still have room to improve, I can admit that. It just feels like if I want a mastery 7 token I need to get fed early and hope the enemy ff's at 15/20 before I start falling off. I have faith in riot, more than most people, so when I say thats what it feels like I need for mastery 7 thats an exxageration. I just wanted to throw this out there.

One last note, I apologize for the awful picture quality. I am still learning about how pc's work and not only do I not know how to get imgur links on the boards to not show up like that, but I dunno how hacking works so I wanted to only get what was neccisary on screen, and since I am inexperienced the only ways I knew how was using snipping tool, or the print screen button plus MS paint.

Anyway, I hope whoever reads this has a great day. Best of luck on the rift! :D