Thank you. I spoke to a third Turbotax staff member (this time through Assist & Review) and they were very helpful. They ran a bunch of tests of entering different data, concluded that 50% of total cost should be entered in each spouses' CCA section.
Definitely an area that should be clarified within the software. Also an area for education for staff given the variation in answers between three staff viewing my screen over the course of one day and variation between answers in the community threads.
