oops, I should have stated that combo #2 is going all new components, nothing physically reused from combo #1. Only reused if it matters are two associated part numbers which is the FSA and KMC.

Yes, the intention out of personal preference is to obtain a better slight "highway" gear at the time of predetermined, scheduled/yearly-winter-boredom-maintenance.
Nothing wrong with the old stuff, especially since the chain is semiannually replaced with a new one after a bi-monthly swap out with the pre-inspected/cleaned/lubricated and shelved last used chain.

I've come to like my method of maintenance as it really works well for myself. May not fit others criteria or check-off to there convenience factor list.