Kreia's mentoring: how much experience? (minor spoiler)

[fable]

With Kreia in your active party, you benefit from "mentoring." This takes the form of increased experience. I was wondering if anybody has determined if this is a percentage of experience beyond the total, a curve, or a specific amount, etc. Just curious. Has anybody compared having her in their party to not having her, and the way that affected experience gained from opening doors, making kills, finishing quests, etc?

[Jacen Morn]

Mentor shows up under kreia's feats tab.
it says she gives a 3% at level 1, 5% at 7 and 7% at 13

[fable]

Thanks. I never thought to look there, because I never thought it would be counted as a regular feat. Doesn't sound like it adds very much, frankly, even at the high end. Kreia's amount of power and ability to cast equally to both sides of the so-called moral spectrum seem a far more potent reason to have her in an active party.