Some stuff I mentioned in the main Krushing Blow thread for all characters on her DF4 KB:
1. The first, and only the first, kick can be a combo ender. They don't all have to be raw.
2. After the first kick, the other kicks do have to be consecutive - no other attacks.
3. Despite popular rumor - not mentioned in this thread but I saw a few people claim it in the General thread and elsewhere - you are able to amplify and all kicks in this sequence. Well, maybe not all, given two meters. I really should have tested how long you're able to take between kicks.