Hey there!
Since I posted this in Feb, I have been using Earth Pro A every first, second, third, fifth, sixth, and seventh feedings. Then, Repashy Calcium Plus LoD on the fourth feeding and Arcadia Calcium Pro MG on every eighth feeding. After the eighth feeding the cycle rotates again from the beginning. Easiest to get a free printable calendar and write what days each supplement falls on. Try calendarsquick.com.
I’ve used this regimen and had no issues. It’s exceeded my expectations.