No I haven't, but I have considered doing so. I suppose it couldn't hurt.
Interesting that in the papers I was served, it doesn't really say why she wants to change our current custody arrangement. It doesn't even mention our current arrangement, just says she wants full custody because she's been the children's primary caregiver since birth, she's involved in their education, she's responsible for their religious training, she manages their health care, and since she's self employed her schedule is flexible. That's it.