Am I the only one who feels like the WHM level 70 Cap Stone ability is just "Meh" at best. I realize it sees some Savage use but that just doesn't sit right with me. Why can't it just convert the existing WHM HoTs? I would use it more if it was:

Convert the effect of Medica II cast by you into Regen on all party members within 30 yalms.
Additional Effect: Heal Party members under the effect of Regen cast by you. Cure Potency 300.

This way you could use Plenary to upgrade your HoT on the party instead of recasting Medica II or cast Medica II again anyway for more healing. It is a lot less cumbersome and would see so much more usage.