in the corner, I've started doing early FB disc, 6K(whiff) stuff (very fun). Outside of that, yeah, H disc in the corner gets you Slide FRC shenanigans, which is just that much faster than TK badmoon/6K, and therefore unreactable (and also DP safe if done right).
Midscreen, early/close enough with the H disc and you get a chance to do TK FB disc for the cross up, or you get to spend tension on badmoon FRC, or iad over (cross up), which can still lead to low airdash back with kick -> air FB disc for the cross up, dash and get the S(f)-2H.
It really is dependant on what you want to achieve and how you want to spend your tension. Against say, may... you might not always want to blow 50% on oki if you might need to use FB disc just to get her knocked down again.