Not to be rude but theres just no shot it works like that at all man, its definitely completely based on win/loss. Those haze games are in ritualist lobbies and the mcginnis games are me running it down with turret mcginnis. Are you a new player?
I recently ranked up to Eternus 3, and it completely destroyed my hero based MMR. Beforehand, I had many "up arrowed" heroes even though many of them didn't make too much sense. Now, I only have 2 "up arrowed" heroes, and they are heroes I don't play. It also put my main hero on down arrow...
After creating category 10, I can no longer edit my build, or go into the build browser to switch it. The scroll bar also does not work. This only applies to the character the build is on.