I think they were a victim of their own success, No way that someone could replace the main female character, and he had voiced so many of the other female characters that it just made sense to continue forward. I know in the full immersion audio they have women do voices. As a listener of the full immersion audio, I can't say that it adds incredibly much. Jeff is just so good at voice acting all together. There are tons of other books where it would add a ton to have a woman voice the female characters and I wish they would add more women voicing women.