(PF)Concussive + Heighten Spell = ¿duration?

[Occasional Sage]

A Concussive Spell (http://www.d20pfsrd.com/feats/metamagic-feats/concussive-spell-metamagic) creates a penalty whose duration is based on the actual level of the spell (ie, pre-metamagic).

A Heightened Spell (http://www.d20pfsrd.com/feats/metamagic-feats/heighten-spell-metamagic---final) has its effective level increased, which doesn't boost Concussive by RAW, but then stipulates that all level-dependent effects calculate using the Heightened level.

Which wording trumps the other? I think RAI is clear, but RAW and logic haven't spoken since sometime in the 70s.

[Andvare]

Due to the wording of Concussive Spell, I'd say that it is the one to follow, as it says:


the actual spell level of the spell

Which, to me, doesn't change with Heighten Spell, that changes the effective spell level, not the actual spell level of the original spell.

[Segev]

Oddly, Sanctum Spell probably still counts.

[137beth]

Let's make it even more confusing:

What if you take spell perfection, and heighten it without using a higher level spell slot, and THEN apply concussive spell?:smalltongue: