Trigger for Critical Hits?

[carraway]

Why does it have to be either/or when it can (and would with the implementation this person is asking for) be both? I'm thinking the guy you quoted is probably correct.

Because the crit-on-trigger mechanic would be unfairly weighted toward slower weapons, introducing a whole new set of balance concerns. It's an unnecessary layer of obfuscation when you can simply introduce the idea of precision elsewhere.