A question about multiple collectives

[CoI]

If you have multiple collectives going at once do they overlap or stack?

[Plausible Pseudonym]

Is this a third party psionics question? Flagging for movement.

[CoI]

Oops, yeah. Sorry. Move at will.
But say you have a vitalist and a tactician each able to have 5 in their collective, would it be 2 separate collectives of 5 or a combined one of 10?

[Plausible Pseudonym]

Separate, especially if it's two different characters. Not sure if you had a multiclassed character, though.

[CoI]

A bard with the archetype that gives him a collective and a vitalist. 2 characters. Is there a FAQ somewhere about this? I couldn't find any