So I finally got around to Geekdom's interview with Vollmer and here's a couple observations I made:
I don't know if she was ever part of Sabat's casting couch sessions, but I definitely don't get an anti-Sabat vibe from her. She seems to guinuinely like the guy. They go way back, knew each other in college.
I think Sabat may have been a cool, nerdy guy who got some power, money, and notoriety and became a weasel.
She was never told her role would be going to Monica, she learned about it after the fact. Said she was given no real reason for the change; however she did say that she had discussed it with Sabat and he seemed pissed about the change too. She said she wasn't happy about it at the time but has since moved on and accepted it.
It was touched on by a couple posters but never really explained, but Funimation contacted her to come back for Battle of Gods and she asked if they could pay for her trip from New Orleans to Dallas. They then stopped contacting her. Makes me wonder if she woulda won back her role from Monica if she woulda made it into Battle of Gods. Kinda surprised me that when she told Geekdom about them dropping her after that question, he replied back with something to the effect of, "Not surprising". And she most likely would have made the trip on her own with no support, too.