Problems about Champion Mastery System

Ok here I'll expose few problems about his system. Actually, I worked hard. I am a main support, so i've got alot of champion mastery (Sona, Zyra, Morgana) And i play adc fairly often (Twitch, Vayne). Also, my favorite Jungler is Aatrox. If you can count, you should've find out i've got 6 MASTERY V CHAMPIONS. And only 3 of them can be exposed on my profile. It sucks. I mean, why couldn't i show more than 3 champions i am proud to master on my profile...

So here's the second problem; Hum there's no much rewards. Except an emote and a little banner when you are loading. Also, when you [Rito] released this system, yousaid that you would still improve this concept, add more content about mastery gain etc. But yet i have seen nothing :/ When you released the new HUD, i had an idea. What about customizing the colors of your HUD based on the champion you master? Per exemple, if i play Aatrox, in wich i have 95k, my HUD would be Black, Red and Grey cause it represents Aatrox very well!!! This reard is an exemple, it could be anything else i don't know... Oh and also excuse my bad english, French-Canadian here

But pls rito do something ;-;