Healer adjustment in 4.05

[OcieKo]

For those wondering, the potency difference between non-crit shieds:
Astro has 575 potency shield, while scholars have a 300 potency shield.

For crit shields:
Astro has 862 potency, to the scholar's 900.

so, for 25% more mp, and a full gcd to cast it, you too, can have a 20% chance to get 37.5 higher potency than the star healer.

Your math is off. Its 575:300 base 575:600 crit, 900 SCH crit is adding in the heal but not the crit potency addition. 862 i think is trying to account for the crit potency addition but not the base heal. Since the base heal would make it 805v900 if neither have crits effect on the base heal in consideration.
But rougly the math should look like AST: (230*CPot)*2.5 = SPot, SCH: (300*CPot)*2 = SPot, so your looking at balancing 575*CPot to 600*CPot and Crit Potency is below 200% now in SB how much I'm not sure.
To make it total efficacy you could just turn the 2.5/2 shield multipliers to 3.5/3 but properly you should add the base potency * crit multiplier result at the end.

Not to say it still isnt too close, but the numbers your looking for are different.
But in the end my opinion on changes to rebalance them hasnt changed, drop the noct shield multiplier by 25-50% or bring the MP costs in line.
Still haven't figured out why Adlo/Succor got hit by MP increases. Only thing I can think of was ABene got hit by it (justified imho) but then WHM Regen avoided it as did AHelios/Medica II.
Also seriously Succor needs a buff. Both Succor and Adloq have the issue of being kept in line with the basic version heals Helios/Medica I and Benefic/Cure II, when they should be in the middle of those and AHelios/Medica II and ABenefic/Regen.