I agree with ovrrnbw. I believe the time with the parent they are with should be focused on where they are and the environment they are in. My D11 has her own phone now and facetimes me and her dad when she wants, texts us when she wants, but if she doesn't want, she doesn't. And when she was younger, her time with her dad is her time with her dad and her time with me was her time with me, unless she asked otherwise. And she usually didn't because she was present where she was, which was healthy for her. Twice a day facetiming is unnecessary. and I don't think it's beneficial, and sometimes, probably more hurtful.

Unless it was a week on and a week off, I would say otherwise, but you have less time in between your hand-off's, so it's not necessary.

My D has gone as far to be honest saying "when I am having fun and busy with which ever parent I am with, I don't really think about the other one too much" I was thankful for that, because I knew she isn't just sitting there missing the one she wasn't with.