Our oldest skipped 5th grade also after having an IAS scale completed that said she was an excellent candidate. She is not a DYS eligible kid and I can still say that it was necessary and she is doing very well socially and academically post-skip.
The few cases where I have seen skips not work as well have been when parents or others have intentionally manipulated the scores on the IAS or where it was completed without an IQ score and that area was just left out of the total calculation. In terms of intentional manipulation, I am referring to signing your kid up for a bunch of activities at the last minute so he gets the points for being involved in a lot of extracurriculars or something like that.
None of these apply to your situation, so I would assume that, if she is coming out as a good or excellent candidate, it probably would be a good decision for her. Like Grinity said, though, expect that it won't be enough in terms of educational challenge eventually.
