The_Scoutman I think the "old" Ivala RP is fake and the "new" Hester RP is Ivala's.
Perhaps, but not necessary. Majority of additional point for Hester's score comes from Little Girl (LG, for short), and can be result of Hester's impression of LG's mind through LG interaction with Crystal of Ivala. As was said at the end of Return in Stineford, divine magic is all about connecting even when used adversarily. And both Crystal and LG are divine constructs. Although, Hester's score can be a part of overall Ivala's score, if remnant of LG's spirit reached Ivala, after breaking her out. It may be called "Hester"'s score simply because it will plays separate role from "Ivala"'s score later, maybe in the final showdown.
Conversely, LG can be Hester's creation (for covert Tower scouting, for example) and completely unrelated to Ivala. That would explain LG's frustration during Council (Hester's emotions trickling through) and can even be alternative explanation for Xestris suggestion to eliminate a "parasite" (suspected Enemy's probe) during base's evaluation. Of course, this doesn't explain LG's actions at the Ardford, but, well, as Xerces put it, Simon has the ability to subvert his adversaries' women. 😀 In that regard LG can simply be Xestris counterpart from the other side. And as such, there would be no conversion of Hester's score to Ivala's.