what do you think about this tool as for mastering ? G-Sonique - Mid-Side: stereophonic harmonic generator / vitaliser+
I haven't used this plug personally, but I imagine it's like all enhancer in that it's just what you need .5% of the time, the remaining 99.5%, it'll do more harm than good.
i've bought it. Really good plugin.On some pretty centered songs can do wonders in restoring the stereo image enhancing the side content. try it!