Some frequencies of your mix are out of phase? No problem.
Shift the frequencies of your signal to your needs is now possible with MFreeformPhase.
The only nitpick: As someone already suggested in the KVR forum, it would be great if one could be able to draw straight lines in the display to accurately and equally shift whole frequency ranges. Thats why I reduce 1 star for a 5/5 review.
Tip: In addition to use MFreeformPhase to correct frequency-dependent phase problems, a helpful and also free tool to detect those problematic frequency ranges is Correlometer by Voxengo, which offers individual correlometers per up to 64 frequency bands.
Both work absolutely great in conjunction with each other and I just can't recommend this way enough instead of using a conventional correlometer and phase corrector which affects the whole entired signal. Why affecting the whole signal, if the phase problem is only related to a certain frequency range?