If you're running /SCH this puts you (marginally) over 500 Healing Magic skill. I'm not understanding the whole "Cure Power" thing. Is there a cap on it? Or is it a diminishing return sort of thing? I've read the page on BGWiki, but I still feel like I'm in the dark. If anyone could clarify what all of this curing jargon means, that'd be super helpful.
Cure Power is what is used to determine the base cure amount prior to the multipliers like Cure Potency, Weather and Cure Received. When SE changed the cure formula it had a very large impact on how RDM heals. The important number to know is you want a Cure Power of 700 to hit the cap for base cure. 1 Healing Magic Skill = 1 Cure power, 2 MND = 1 Cure Power and 4 VIT = 1 Cure Power. Also healing magic determines the power of Tranquil Heart, which is an additional amount of enmity reduction that caps at -25 @500 healing magic skill. Cure IV will get 640 base cap, which gives you a 960HP cure IV before weather, cure received or cure pot II.
So basically you want to hit 500 Healing magic skill with capped cure potency and some -enmity. This is extremely easy for /SCH but difficult for /WHM, which you will need to gear around if you ever intent on main healing. Curaga's have a different formula which favors MND over Healing Magic Skill. Vanya becomes very important for /WHM healing sets.
:Edit:
Here is a quick rundown for Cure IV but also applies to other ST Cures.
Power = floor(MND÷2) + floor(VIT÷4) + Healing Magic Skill
Base = floor( (Power - Power Floor) ÷ Rate ) + HP Floor
Assuming MND = 250, VIT = 200 and Healing Magic Skill = 500
(250/2) + (200/4) + 500 = 125 + 50 + 500 = 675 Cure Power, slightly under the power cap
For Cure IV with a Cure Power between 400 and 700 the divisor is 2.5, the Power Floor is 400, and the HP floor is 520.
((675-400)/2.5) + 520 = 630 HP Base
Then 50% Cure Potency brings it to 630 * 1.5 = 945, Light Weather will bring it to 945 * 1.10 = 1039
Hopefully that helps in understanding how cures work. Getting cure potency is easy, the hard part is enough skill to cap tranquil heart while also having plenty of -enmity.