Fs could be like Advanced CoA, but CoC coating and stronger versions of it amplifying CoA. Would be dope if it's uaed that way and it's used as an amplifier for CoO too, but unsure how that would work.
i guess you could argue future sight to an even greater degree ?
i cant think of anything at the moment lol
but i would much prefer this route than just an amped armament haki so to speak