New Setup: 4 Panels, Correct CT's, Etc?

[overeasy]

@QDubs

You say that I only need 1 CT (I assume for the mains). I would think I’d need at least 4 initially - A & B legs on panel #1 and A & B legs on panel #2 ? Then later add 4 more: A&B on Panel #3 and A&B on panel #4

You need two CTs for the mains in each panel.

@QDubs

How are you correcting for the voltage difference? How much impact does this have?

Perfect is the enemy of good. I talk about split-phase voltage reference here. Bottom line is the one 120V reference works well. Using two 120V references is more complicated and doesn’t help with the dominant 240V loads. I personally use a 240V VT calibrated down to 120V.