Quote Originally Posted by NeoCybercoin
Well...my theory is that because Clare has Teressa's flesh crafted into her, she is now using Teressa's Yoki because she passed her own limit but has yet to pass Teressa's limit. So it could be that Clare's side has awakened but Teressa's hasn't?
Limits seem to be based off mental strength alone. Very similar to the situation with Jeane, who had far exceeded her body's own. If you can keep it in check, you can go up and up. Clare is far weaker than normal Claymores in terms of Yoki because she has Teresa's flesh instead of a yoma.

Any Yoki she's using is her own, taken from the 1/4 yoma flesh her body took in from Teresa's.