Here's my post working through the math for the changes I'd suggest for the cure formula:

http://forum.square-enix.com/ffxi/th...103#post222103

The math is far more specific than Economizer's post, but I think that the suggested changes are quite reasonable. It gives greater weight to skill than mnd, and tones down the scaling restrictions past the soft (for Cure IV/V) and hard (for all cures) caps. So jobs with native healing skill will heal significantly better than jobs without that skill, though the overall effect will have jobs that might sub whm (or whatever) still curing for just slightly more than they do now.

Thus, no downside compared to current curing, but improves the amount cured by Cures 1-4 by around 25% at level 99 for those with native skill (before cure potency is applied).