This question has been asked before, but it is of more importance now than ever with ZG coming.
Are we on a 1-roll or 2-roll system? 1-roll meaning your crit% will add a flat amount of crits to your casts, and 2-roll being crit having to first pass a hit check. For example: If I have 10% crit and 0% hit and cast 1k shadowbolts on a 63boss I'd hit 830 on paper, but crit either 100 or 83 times depending on roll system.
Has anyone else done testing?