I can't say I agree with most of your RDM merit changes or non-changes...

Group 1: get rid of the <element> accuracy merits, and replace them with something more usefull.
* Enfeebling Magic Accuracy
* Elemental Magic Accuracy
* Enhancing Magic Duration
* "Phalanx" potency

As for group 2:
Make Dia III, Bio III and Phalanx II 100% at rank one, and add bonusses to Slip Damage or Damage Reduction for each additional upgrade.


Completely Remove Phalanx II. paladin can self cast it for more damage reduction, and scholar can AOE it for more damage reduction. the spell is worthless these days.
I prefer to keep it, especially since I don't have Dia III or Bio III. And RDM Phalanx II beats PLD Phalanx by a big margin, especially at 99.