I'm strongly considering changing Frost to 7-3. Wake-up slide doesn't matter much when WoWo's neutral game is so much better and less risky than KF's. Her whole game revolves around throwing out random slides and air-to-airs so she's basically just rolling dice or hoping you do something stupid. Parry is the only thing you really have to worry about, and she's risking just as much on that parry as you are by pressuring her. Wonder Woman having a life lead is also far more daunting than Frost having one. She doesn't have problems walking KF down and Frost has problems anti-airing j3 with d2. If she tries to MB f3 then a divepunch cancel will beat that and cause her to waste a meter, so it's not a very appealing option. Meanwhile if WoWo has the life lead, there's no good reason for KF to land a hit at all. If Frost does then she can mix you up, but it's not so easy getting that hit in the first place. Even if it's not 7-3 normally, it definitely is on stages like Watchtower, Arkham, etc.
Edit: I just went ahead and changed it to 7-3. If anyone disagrees, feel free to speak up.