Quote Originally Posted by Kaurie View Post
I feel the easiest way is to remove all gear (except weapon of course). Cast heal on yourself a bunch and see the difference between crits vs non crits (average as they tend to fluctuate). Then remove gear and do again (this is assuming you have some crit on your gear to be noticeable)
It's easier on a job with no MND gear. BLM spamming Physick with no gear, and then with Crit gear. Or you could just read the tooltip for crit hit rate, and see that it does in fact affect rate and potency of crit heals.