RJ debated with himself a bit on Sorilea's strength, assigning low-range, mid-range, and high-range strengths for her. He eventually ended up going with low-range, but still not really approaching the depths of Moiraine's post-Ghenjei strength.
The Wise Ones have more detail on strength than any other non-Aes Sedai group except maybe the Kin. These groups interacted often with the Aes Sedai, sometimes in power (not Power) struggles, and while strength wasn't a factor with the Kin and the Aiel, it was a factor for the Aes Sedai in how they perceived those women.
The debate on Sorilea is a good example of how RJ's notes go. Very, very little is set in stone until the moment when he writes it. He has tons of notes that are marked UNUSED - CAN CHANGE or some variation thereof. It was often UNUSED AS OF CROWN or whatever book; he was very haphazard about reminder protocol, but since the notes themselves are updated haphazardly, book markers were probably necessary to help keep things straight.
Interesting. And I'm glad Sorelia was kept weak. That added a ton of interest to her character, and RJ used it very well in driving Egwene's realization that the Tower shouldn't be discarding women weak in the OP.
All this, I think, only deepens my respect for the level of consistency in the series. Yes, he had detailed notes and assistants, but the man himself clearly had a great organizational structure in his head that he never put on paper. No wonder so many things unspooled when Brandon took over.
Lol! I remember finding that scene to be one of the sexiest in the series, for all that it is relatively tame.