Besides tinkering with some RE cancels, I admit to not using it too much. If only because if I do happen to need to RE itself, the game never accepts my input, and just does what it wants. So uh... it's a guessing game I have no control over at that point.
Practice mode got me all excited for a second when I was testing post GI, RE-WNC cancels to cover both A+B lethals and regular launcher follow-ups, buuut, that was just training mode being bad and slow. Shit don't work, hahaha. Too bad too, that would have been quite a game changer for her, as people do like to GI her. A bit obnoxious though, I admit. Sort of glad it doesn't work, the butthurt levels would be through the roof against her if it did. Might still work on some character who has a slow A+B.