I've a couple questions about stacking Channel Energy.
As I understand, different methods of gaining Channel Energy do not 'stack' (unless stated otherwise).
My questions are mostly about PRCs (and other effects) that stack with channel energy while having multiple sources of the latter.
For instance, a Holy Vindicator's class level 'stacks with levels in any other class that grants the channel energy ability'.
I can't imagine that it would 'fuse' the levels in, say, Paladin and Cleric, and there's no text to suggest that a Vindicator must choose one source to advance, so the most intuitive answer would be that a Pal 5 / Cle 5 / HV 10 channels as a Pal 15 / Cle 15. Is my interpretation accurate?
Does this differ if the Vindicator levels were in Order of the Star Cavalier, which specifically mentions Paladin and Cleric?
VMC Cleric gives 'cleric-like' channeling, so levels in, say, Envoy of Balance (if taking the Spiritual Equilibrium endowment, which allows 'the envoy of balance’s class levels count as cleric levels for determining the effects of her channel energy ability') would then add a new channeling pool, as a low-level cleric, yes?
Would a Holy Vindicator's class levels stack with the Cleric VMC? The VMC Channeling does not depend on class level per se, whereas a HV increases effective class level, so I would understand it not to.
A Cleric (Elder Mythos Cultist, which alters Channel Energy to be neither negative nor positive) / Envoy of Balance using Twinned Channeling, though, could, I believe, use Twinned Channeling to channel positive and negative energy, despite not doing either naturally.
Am I correct in any of this?