What does Determination really do?

[UBERHAXED]

Huh? What do you mean affects procs? Do you mean crit hit procs? cuz that is affect by the critical hit ratio stat. Do you mean the procs for jobs when they get a free cast of a ability? Cuz for most jobs those procs are procced by doing a crit hit.

Exactly one job (bard) get's procs from critical hits and only 3 total (bard, blm, whm) get procs at all.