I think there is a difference between "the bonds not breaking" and "underprocessed with curl pattern still in." If it is underprocessed, I would wait it out, at least 6 weeks. I know its frustrating because I have been there a few times myself. If the bonds did not break at all, I would wait about 4 weeks. If at that time there is a lot of shedding, I would retouch that area, but I personnally would not go through the smoothing stage. I would just apply, spread and rinse. This is still risky though.