Question about the Graves rework.

Dear Riot, first of all, thanks for going all out on the complexity in preseason. I kinda ragequit League for a while cause I couldn't tell where League was going for a while. Maybe I'll write a rant for that at some point in the future :P

But anyway I saw the Graves rework, and I have some questions. They're about Destiny(fuck you TF)

One: The reloading. You only get two shots ever, I understand, it's a doublebarrel, but how will the reloading compensate? Will it average out attackspeed on the long run or are you supposed to dash in, doubleshot them in the face, then smokescreen them and run?

Two: The crits. From my understanding, you don't get more damage from critical strikes, you just get more bullets. This is fine to me, but I do have one question. What about Infinity Edge and other sources of Critical Damage? Won't those go to complete waste? Or will IEdge add 2 more bullets? because that'd still mean Crit Damage runes are useless as those won't ever lead up to 25%.

Thanks for answering. Also everyone else, feel free to speculate.