Thanks veryone for the clarification.
One (final?) uncertainty is the circuit of my bow thruster. I am not entirely sure about the current it is drawing (it looks like there is a 280A fuse but hard to read), so would it be wise to put that current through the 500A smartshunt?
You only use it in short bursts, so does it really throw off the calculations if I don’t include the bow thruster in the mix?