I think you are confusing the VR native to the Alt - which is mandatory - and the "intelligent combiner" fancy ACR/VSRs that stage/prioritize the order, which banks get charged first rather than just paralleling all of them.
The latter is not needed.
Best practice is to put all charge sources directly on the House bank, which is usually the one drawn down most frequently and deeply.
Dedicated voltage sense and temp sensing wire for fine compensation and heat de-rating must be directly connected to the bank.
Then the smaller, less used banks get charged from there with either quality ACR or DCDC charger
Hope that helps.