For MSRRA to be of any value, it matters what your SLR is, and what state you are working in, as well as the military spouse's HOR. You don't tell us any of that. For example, if FL is your SLR and you work in GA, then MSRRA is of no value to you since FL doesn't tax personal income. You'll pay full state taxes to GA, like it or not.
Without knowing what states are involved here, there's no way for anyone to know (so they can tell you) how to apply MSRRA to your specific situation.
